CN110511799A - It is a kind of using NGH as the LNG peak regulating method of medium - Google Patents
It is a kind of using NGH as the LNG peak regulating method of medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 96
- 239000000463 material Substances 0.000 claims abstract description 51
- 238000002347 injection Methods 0.000 claims abstract description 50
- 239000007924 injection Substances 0.000 claims abstract description 50
- 239000002002 slurry Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000002309 gasification Methods 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims description 26
- 239000011344 liquid material Substances 0.000 claims description 20
- 239000013535 sea water Substances 0.000 claims description 17
- 238000009826 distribution Methods 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 14
- 238000004148 unit process Methods 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 7
- 230000008602 contraction Effects 0.000 claims description 7
- 238000009987 spinning Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 62
- 239000007789 gas Substances 0.000 description 49
- 239000003949 liquefied natural gas Substances 0.000 description 49
- 239000003345 natural gas Substances 0.000 description 29
- 238000010586 diagram Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- WKVZMKDXJFCMMD-UVWUDEKDSA-L (5ar,8ar,9r)-5-[[(2r,4ar,6r,7r,8r,8as)-7,8-dihydroxy-2-methyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-9-(4-hydroxy-3,5-dimethoxyphenyl)-5a,6,8a,9-tetrahydro-5h-[2]benzofuro[6,5-f][1,3]benzodioxol-8-one;azanide;n,3-bis(2-chloroethyl)-2-ox Chemical compound [NH2-].[NH2-].Cl[Pt+2]Cl.ClCCNP1(=O)OCCCN1CCCl.COC1=C(O)C(OC)=CC([C@@H]2C3=CC=4OCOC=4C=C3C(O[C@H]3[C@@H]([C@@H](O)[C@@H]4O[C@H](C)OC[C@H]4O3)O)[C@@H]3[C@@H]2C(OC3)=O)=C1 WKVZMKDXJFCMMD-UVWUDEKDSA-L 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/108—Production of gas hydrates
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention belongs to NG peak regulation technique fields, it is related to a kind of using NGH as the LNG peak regulating method of medium, it is realized based on LNG peak adjusting device, technical process includes LNG gasification, first order reaction, second order reaction, third-order reaction and NGH decompose totally five steps, using third-order reaction, it is utilized between the progress ladder of cold energy and pressure, significantly improve single-cycle reaction efficiency, the energy consumption of unit production capacity is substantially reduced, bulkhead bracket in the reaction kettle of the first order significantly reduces enlarge-effect when high pressure hydrate slurry generates, the height of column plate and the quantity of venthole and size provide flow assurance for high pressure hydrate slurry, avoid blocking, the injection reactor of the second level makes full use of the high pressure of high pressure hydrate slurry to provide good gas-liquid contact interface, the cyclone hydraulic separators of the third level utilizes third stock gas material and low water content Hydrate slurry it is tangential contact provide the update of gas-liquid interface, make the abundant turbulence of two-phase, coupled reaction and separation function.
Description
Technical field:
The invention belongs to NG (natural gas) peak regulation technique fields, and in particular to one kind is with NGH (gas hydrates) for matchmaker
LNG (liquefied natural gas) peak regulating method of Jie.
Background technique:
In recent years, with the optimization of energy resource structure and to the raising of environmental requirement, relatively for coal and petroleum, NG conduct
A kind of clean fossil energy has obtained people and has constantly paid close attention to and study.Resident's combustion gas use, gas chemical industry, fuel gas generation
And the high-speed requirement in the fields such as energy fuel, it is greatly promoted the development of NG industry.In face of powerful demand, on the one hand need
The exploration and development work of NG resource is actively developed in the higher area of NG yield, on the other hand need to increase to the overseas of NG
Import.And the LNG as cost-effective marine long-distance transportation, a large amount of imports, the reception to LNG, storage and peak regulation
Infrastructure construction and conveyance system propose great requirement.Current LNG storing technology mainly uses high pressure low temperature spherical tank
There are a large amount of BOG of processing in storage, the cryogenic high pressure requirement based on LNG storage, the safety of storage process and equipment
Make carrying cost extremely high with complexity.
NGH, can be in high pressure and low temperature as a kind of unconventional fossil energy for being widely present in seabed and tundra
It is produced under environment.Theoretically the NGH of unit volume can discharge 165 times of methane, at the same NGH can low temperature (- 15 DEG C, this
Temperature is much higher than -162 DEG C of the low temperature environment of LNG storage request) long-term preservation and only micro decomposition under normal pressure.This is in theory
On show with water to react NG under high pressure low temperature production NGH and low-temperature storage, NGH output NG tool is decomposed in NG demand peak
There is very high economic value.
From city, NG usage amount can be seen that the ebb period that June to October is NGH usage amount, while at this
The price of phase LNG is relatively low with respect to other periods.If a large amount of LNG of import at this time, it is anti-with water simultaneously that LNG gasification is formed into NG
NGH should be generated, then saves NGH and solves the peak regulation that release is used for NG with the gas peak time-division to autumn and winter, there is very big economic effect
Benefit.The condition of storage of the storage condition ratio LNG of NGH is mild, it is only necessary to low-temperature atmosphere-pressure environment, in the Storage period of several months, LNG's
Storage cost is much higher than the storage of NGH.Meanwhile LNG is during storage because the non-fully heat-insulated of equipment can generate a large amount of BOG
(flashed vapour) recycles the technique of BOG due to needing the compressor of high energy consumption largely to do work, cools down the cooling cost of BOG in addition, make
It is very high to obtain storage cost.It is stored using NGH, even if equipment is also non-fully heat-insulated, what surface NGH was formed after decomposing
NG and ice play the protective effect to internal layer NGH, greatly reduce the complexity of NGH storage process.In addition, from secure side face angle
Degree considers that when LNG storage tank leaks, a large amount of LNG gasifications expand to form NG, great risk, and NGH has essential safety
Storge quality, basic reason is that gases methane molecule is closed by the hydrogen bond skeleton that hydrone is formed, if release gas
Molecule, it is necessary to first destroy premised on the hydrogen bond skeleton of water, the latent heat that every gram of water melts in NGH is 0.5-0.6kJ, is much higher than every gram
The latent heat 0.335kJ of ice-out, so that NGH needs a large amount of heat that could decompose.Furthermore the thermal conductivity of NGH is only 0.5Wm-1·
K-1, far below the thermal conductivity 2.23Wm of ice-1·K-1Even if NGH is exposed under normal pressure and temperature, influenced by lower thermal conductivity, NGH
It decomposes and release gas velocity is slow, slow situation is also presented in the case where burning, fundamentally solving LNG leakage may
The problem of leading to explosion.It can be seen that forming NG and react generation NGH with water simultaneously to carry out storage LNG gasification is an essence
Foolproof method, Mitsui company, which has been carried out, converts NGH for LNG, and transport NGH to use gas point lab scale and
Pilot experiment, and good economy is presented, but it does not make full use of the advantage of NGH storge quality.Therefore, it grinds
Hair design it is a kind of using NGH as the LNG shaving process method of medium, give full play to and using NGH storge quality advantage.
Summary of the invention:
It is an object of the invention to overcome disadvantage of the existing technology, R & D design is a kind of using NGH as the LNG tune of medium
Peak method realizes that LNG is converted into the serialization of NGH, meanwhile, the cold energy discharged when generating NG using LNG gasification be freezer and
Third-stage reactor cold insulation.
To achieve the goals above, of the present invention to be based on LNG peak adjusting device by the LNG peak regulating method of medium of NGH
It realizes, technical process includes that LNG gasification, first order reaction, second order reaction, third-order reaction and NGH decompose totally five steps:
(1) LNG gasification: being delivered to LNG storage tank for the LNG in quay transportation ship, starts immersed pump and output pump for LNG
The cold energy of LNG is delivered to freezer by pressurized delivered to No.1 heat exchanger, No.1 heat exchanger, and the temperature of freezer is maintained -20 DEG C,
LNG becomes the NG of cryogenic gaseous after No.1 heat exchanger, and the NG of cryogenic gaseous enters No. two heat exchangers, the NG's of cryogenic gaseous
Cold energy from No. two heat exchangers enter seawater heat exchanger after by forecooler, enter through spinning liquid point from the bottom of cyclone hydraulic separators
Collet from device, injection reactor and reaction kettle returns to No. two heat exchangers after coming out from the top of reaction kettle, form refrigerant circulation
Chain；The NG of cryogenic gaseous is distributed into three strands of gas materials after No. two heat exchangers；
(2) first order reaction: first strand of gas material first passes through No.1 compressor compresses to setting pressure, then passes through pre-cooling
Device enters reaction kettle after exchanging heat to set temperature, the liquid material at the top of reaction kettle is uniformly sprayed by liquid distribution trough, and first
Stock gas material is uniformly sprayed by gas distributor, and liquid material flows transversely across column plate, and first strand of gas material passes through ventilation
Hole, liquid material react the high pressure hydrate slurry for generating and containing a large amount of water with first strand of gas material, and high pressure hydrate slurry is anti-
The pressure of kettle is answered to be pressed into injection reactor；
(3) second order reaction: second strand of gas material sucks injection reactor by high pressure hydrate slurry, in injection reactor
Diffuser casing, high pressure hydrate slurry sprays the pulpous state bead to be formed, and second strand of gas material is reacted with pulpous state bead, to reduce slurry
The water content of shape bead forms the hydrate slurry of low water content；
(4) third-order reaction: the hydrate slurry of low water content enters cyclone hydraulic separators with tangential direction, meanwhile, third stock gas
Body material enters cyclone hydraulic separators with opposite tangential direction, most of water in the hydrate slurry of low water content and third stock gas
Body material carries out turbulence hybrid reaction and forms NGH, and NGH is collected along behind the bottom of inner cylinder rotating to cyclone hydraulic separators into NGH
Device, NGH collector are transported to freezer after being filled with, unreacted water is revolved by partition orifice plate in the hydrate slurry of low water content
The top for being delivered to reaction kettle after dividing to the bottom of outer cylinder by No.1 pump is anti-with first strand of gas material as liquid material continuation
Answer, the liquid material at the top of reaction kettle also derive from taken by No. two pumpings and passed through seawater heat exchanger exchange heat it is new to set temperature
Fresh water；
(5) NGH is decomposed: when using gas peak, being closed the connection of No.1 heat exchanger and freezer, is opened heat pipe, heat pipe utilizes ground
Heat heating freezer opens NGH collector, and it is laggard by the pressure rating of No. two compressor compresses to setting that NGH decomposes release NG, NG
Enter pipe network.
The main structure of LNG peak adjusting device of the present invention includes LNG storage tank, immersed pump, output pump, No.1 heat exchange
Device, No. two heat exchangers, reaction kettle, injection reactor, cyclone hydraulic separators, No.1 compressor, seawater heat exchanger, NGH collector, one
Number pump, forecooler, No. two pumps, contraction mouth, liquid distribution trough, bulkhead bracket, gas distributor, diffuser casing, partition orifice plate, inner cylinder,
Outer cylinder, No.1 valve, No.1 pressure gauge, No. two valves, No. two pressure gauges, No. three valves, No. three pressure gauges, freezer, No. two pressures
Contracting machine, pipe network and heat pipe；LNG storage tank is internally provided with immersed pump, and immersed pump is connect with output pump, and output pump and No.1 exchange heat
Device connection, No.1 heat exchanger connect with No. two heat exchangers, No. two heat exchangers respectively with reaction kettle, injection reactor, rotary filter press
Device, No.1 compressor are connected with seawater heat exchanger, cyclone hydraulic separators respectively with NGH collector and No.1 pump connect, No.1 pump with
Reaction kettle connection, No.1 compressor connect with forecooler, and forecooler is connect with reaction kettle, seawater heat exchanger respectively with reaction kettle and
No. two pump connections, reaction kettle are connect by contraction mouth with injection reactor, and reaction kettle is internally provided with liquid distribution trough, partition
Frame and gas distributor, liquid distribution trough are located at top, and bulkhead bracket is located at middle part, and gas distributor is located at lower part, injection reaction
Device is internally provided with diffuser casing, and injection reactor is connect by diffuser casing with cyclone hydraulic separators, the inside of cyclone hydraulic separators by
Partition orifice plate is divided into inner barrel and outer barrel；No. two are provided with No.1 valve, No.1 valve and spray between heat exchanger and injection reactor
It penetrates between reactor and is provided with No.1 pressure gauge, No. two are provided with No. two valves, No. two valves between heat exchanger and cyclone hydraulic separators
No. two pressure gauges are provided between door and cyclone hydraulic separators, No. three valves are provided between No. two heat exchangers and No.1 compressor,
No. three are provided with No. three pressure gauges between valve and reaction kettle, the freezer being independently arranged is connect with No.1 heat exchanger, and freezer passes through
No. two compressors are connected to pipe network, and the outside of freezer is connect with heat pipe.
Reaction kettle of the present invention, injection reactor, cyclone hydraulic separators constitute third-order reaction container；Bulkhead bracket will react
The inner space of kettle is divided into unit process space, and half that alternating expression is provided in each unit process space lacks type column plate, tower
Venthole is provided on plate, liquid material and first strand of gas material are evenly distributed by liquid distribution trough and gas distributor respectively
It is sent into unit process space afterwards, liquid material flows through tray surfaces, and first strand of gas material is connect by venthole and liquid material
Touching, gas-liquid interface are constantly updated, and the reaction that is sufficiently mixed for liquid material and first strand of gas material provides heat and mass interface,
Reduce enlarge-effect when NGH is generated, the quantity of the partition number of bulkhead bracket, plate height and venthole is according to reaction kettle
The viscosity of capacity and high pressure hydrate slurry is chosen；No.1 valve, No. two valves and No. three valves are direct-operated regulator, respectively
The flow of second strand of gas material, third stock gas material and first strand of gas material is adjusted；No.1 pressure gauge, No. two
Pressure gauge and No. three pressure gauges respectively measure the pressure of injection reactor, cyclone hydraulic separators and reaction kettle.
Compared with prior art, the present invention being utilized between the progress ladder of cold energy and pressure using third-order reaction, reducing water
The water content for closing object slurry greatly improves the utilization rate of accelerator solution simultaneously, significantly improves single-cycle reaction efficiency, unit
The energy consumption of production capacity is substantially reduced, and the bulkhead bracket in the reaction kettle of the first order significantly reduces amplification when high pressure hydrate slurry generates
Effect, the height of column plate and the quantity of venthole and size provide flow assurance for high pressure hydrate slurry, avoid blocking, and
The injection reactor of second level makes full use of the high pressure of high pressure hydrate slurry to provide good gas-liquid contact interface, the spinning liquid of the third level
Separator provides the update of gas-liquid interface using the tangential contact of the hydrate slurry of third stock gas material and low water content, makes
The abundant turbulence of two-phase, has coupled reaction and separation function；It carries out cold insulation at the cold energy that NG discharges using LNG gasification, utilizes
The thermal decomposition NGH of heat pipe exploitation decomposes NGH using hot water instead of traditional, using dispersion, NGH that volume is moderate collects
Device and concentration, bulky freezer has both the distribution and centralised storage of NGH, realizes LNG and is converted into NGH technique
Serialization.
Detailed description of the invention:
Fig. 1 is process flow diagram of the invention.
Fig. 2 is the main structure schematic illustration of LNG peak adjusting device of the present invention.
Fig. 3 is the structural schematic diagram of bulkhead bracket of the present invention.
Fig. 4 is the structural schematic diagram of column plate of the present invention.
Fig. 5 is the structural schematic diagram of cyclone hydraulic separators of the present invention.
Fig. 6 is the hydrate slurry injection direction schematic diagram of third stock gas material of the present invention and low water content.
Specific embodiment:
The present invention is described further by way of example and in conjunction with the accompanying drawings.
Embodiment 1:
What the present embodiment was related to is realized using NGH as the LNG peak regulating method of medium based on LNG peak adjusting device, technical process packet
It includes LNG gasification, first order reaction, second order reaction, third-order reaction and NGH and decomposes totally five steps:
(1) LNG gasification: the LNG that LNG storage tank 1 stores enters No.1 heat exchanger 4 by immersed pump 2 and the boosting of output pump 3,
The cold energy of LNG is divided two-way to be delivered to freezer 29 by No.1 heat exchanger 4, and the temperature of two-way cold energy is respectively -30 DEG C and -25 DEG C, will
The temperature of freezer 29 maintains -20 DEG C, and for storing NGH, LNG becomes the NG of cryogenic gaseous, low temperature after No.1 heat exchanger 4
Gaseous NG enters No. two heat exchangers 5, the cold energy of the NG of cryogenic gaseous from No. two heat exchangers 5 enter seawater heat exchanger 10 after by
Forecooler 13 enters through cyclone hydraulic separators 8, injection reactor 7 and reaction kettle 6 from the bottom of cyclone hydraulic separators 8, from reaction
The top of kettle 6 returns to No. two heat exchangers 5 after coming out, form refrigerant circulation chain, is cyclone hydraulic separators 8, injection reactor 7 and reaction
The third-order reaction container that kettle 6 is constituted provides 2 DEG C of low temperature process condition；The NG of cryogenic gaseous passes through after No. two heat exchangers 5
Four way valve is distributed into three strands of gas materials；
(2) first order reaction: seawater is cooled into 2 DEG C fresh by entering seawater heat exchanger 10 after No. two 14 pressurizations of pump
Unreacted water is mixed to form the liquid into 6 top of reaction kettle in the cyclone hydraulic separators 8 that water, fresh water and No.1 pump 12 extract
Material, liquid material are evenly distributed in unit process space by liquid distribution trough 16, meanwhile, it is compressed through No.1 compressor 9
To setting pressure, first strand of gas material that reaction kettle 6 is entered after the pre-cooled heat exchange to set temperature of device 13 is distributed by gas
Device 18 is evenly distributed in unit process space, and liquid material flows transversely across column plate, and first strand of gas material passes through venthole, liquid
Body material reacts the high pressure hydrate slurry for generating and containing a large amount of water with first strand of gas material, and high pressure hydrate slurry is by reaction kettle 6
Pressure by contraction mouth 15 be pressed into injection reactor 7；The flow of first strand of gas material passes through according to the pressure of reaction kettle 6
No. three valves 27 control；
(3) second order reaction: second strand of gas material sucks injection reactor 7 by high pressure hydrate slurry as passive fluid,
In the diffuser casing 19 of injection reactor 7, high pressure hydrate slurry actively drives passive fluid injection to enter diffuser casing 26 as high pressure
The pulpous state bead surrounded by second strand of gas material is formed, gas-liquid interface is constantly updated, second strand of gas material and pulpous state bead
Reaction forms the hydrate slurry of low water content, and the flow of second strand of gas material passes through No.1 valve according to the pressure of diffuser casing 26
Door 23 controls；
(4) third-order reaction: the hydrate slurry of low water content is injected into cyclone hydraulic separators 8 with tangential direction, meanwhile, the
Three strands of gas materials enter cyclone hydraulic separators 8 with the angle peripheral jet vertical with the hydrate slurry injection direction of low water content,
Most of water in the hydrate slurry of low water content and third stock gas material carry out turbulence hybrid reaction and form NGH, NGH along
Enter NGH collector 11 after the rotation to the bottom of cyclone hydraulic separators 8 of inner cylinder 21, NGH collector 11 is transported to freezer after being filled with
29 concentrate preservation, and unreacted water is by partition orifice plate 20 by after rotation point to the bottom of outer cylinder 22 in the hydrate slurry of low water content
It is extracted by No.1 pump 12, and converges with being extracted and being exchanged heat by seawater heat exchanger 10 to the fresh water of set temperature by No. two pumps 14
Continue to react with first strand of gas material as liquid material into the top of reaction kettle 6 afterwards；The flow of third stock gas material
According to the pressure of the inner cylinder 21 of cyclone hydraulic separators 8, controlled by No. two valves 25；
(5) NGH is decomposed: when using gas peak, being closed the connection of No.1 heat exchanger 4 and freezer 29, is opened heat pipe 32, heat pipe
32 are changed into geothermal energy the interior energy of fluid in heat pipe 32, and the interior of fluid can heat freezer 29 in heat pipe 32, open NGH
Collector 11, NGH, which is decomposed after release NG, NG are compressed to the pressure rating of setting by No. two compressors 30, enters pipe network 31.
The main structure for the LNG peak adjusting device that the present embodiment is related to includes LNG storage tank 1, immersed pump 2, output pump 3, No.1
4, No. two heat exchangers 5 of heat exchanger, reaction kettle 6, injection reactor 7, cyclone hydraulic separators 8, No.1 compressor 9, seawater heat exchanger 10,
NGH collector 11, No.1 pump 12, forecooler 13, two pumps 14, contraction mouth 15, liquid distribution trough 16, bulkhead bracket 17, gas point
Cloth device 18, diffuser casing 19, partition orifice plate 20, inner cylinder 21, outer cylinder 22, No.1 valve 23,24, No. two valves 25 of No.1 pressure gauge,
No. two valve 27, three of pressure gauge 26, three pressure gauges 28,29, No. two compressors 30 of freezer, pipe network 31 and heat pipe 32；LNG storage
Tank 1 is internally provided with immersed pump 2, and immersed pump 2 is connect with output pump 3, and output pump 3 is connect with No.1 heat exchanger 4, No.1 heat exchange
Device 4 is connect with No. two heat exchangers 5, No. two heat exchangers 5 respectively with reaction kettle 6, injection reactor 7, cyclone hydraulic separators 8, No.1 pressure
Contracting machine 9 and seawater heat exchanger 10 connect, and cyclone hydraulic separators 8 connect with NGH collector 11 and No.1 pump 12 respectively, No.1 pump 12 and
Reaction kettle 6 connects, and No.1 compressor 9 is connect with forecooler 13, and forecooler 13 is connect with reaction kettle 6, and seawater heat exchanger 10 is distinguished
It is connect with reaction kettle 6 and No. two pumps 14, reaction kettle 6 is connect by contraction mouth 15 with injection reactor 7, and the inside of reaction kettle 6 is set
It is equipped with liquid distribution trough 16, bulkhead bracket 17 and gas distributor 18, liquid distribution trough 16 is located at top, during bulkhead bracket 17 is located at
Portion, gas distributor 18 are located at lower part, and injection reactor 7 is internally provided with diffuser casing 19, and injection reactor 7 passes through diffuser casing
19 connect with cyclone hydraulic separators 8, and the inside of cyclone hydraulic separators 8 is divided into inner cylinder 21 and outer cylinder 22 by partition orifice plate 20；No. two heat exchange
It is provided with No.1 valve 23 between device 5 and injection reactor 7, No.1 pressure is provided between No.1 valve 23 and injection reactor 7
Power table 24, is provided with No. two valves 25 between No. two heat exchangers 5 and cyclone hydraulic separators 8, No. two valves 25 and cyclone hydraulic separators 8 it
Between be provided with No. two pressure gauges 26, No. three valves 27, No. three valves 27 are provided between No. two heat exchangers 5 and No.1 compressor 9
No. three pressure gauges 28 are provided between reaction kettle 6, the freezer 29 being independently arranged is connect with No.1 heat exchanger 4, and freezer 29 passes through
No. two compressors 30 are connected to pipe network 31, and the outside of freezer 29 is connect with heat pipe 32.
The temperature of reaction kettle 6, injection reactor 7 and cyclone hydraulic separators 8 that the present embodiment is related to is -2 DEG C, reaction kettle 6
Pressure is 6MPa, and the pressure of injection reactor 7 is 5MPa, and the pressure of cyclone hydraulic separators 8 is that 3MPa injection reactor 7 is liquid spray
Penetrate loop type reactor；Bulkhead bracket 17 is made of six pieces of partition grafting.
The reaction kettle 6 and freezer 29 that the present embodiment is related to are exchanged heat using inner coil pipe or external jacket two ways；Injection reaction
Device 7, cyclone hydraulic separators 8 are exchanged heat using external jacket mode.
Claims (5)
1. a kind of using NGH as the LNG peak regulating method of medium, it is characterised in that realized based on LNG peak adjusting device, technical process includes
LNG gasification, first order reaction, second order reaction, third-order reaction and NGH decompose totally five steps:
(1) LNG gasification: being delivered to LNG storage tank for the LNG in quay transportation ship, starts immersed pump and output pump pressurizes LNG
It is delivered to No.1 heat exchanger, the cold energy of LNG is delivered to freezer by No.1 heat exchanger, the temperature of freezer is maintained -20 DEG C, LNG
Become the NG of cryogenic gaseous after No.1 heat exchanger, the NG of cryogenic gaseous enters No. two heat exchangers, and the NG's of cryogenic gaseous is cold
By forecooler after seawater heat exchanger capable of being entered from No. two heat exchangers, rotary filter press is entered through from the bottom of cyclone hydraulic separators
The collet of device, injection reactor and reaction kettle returns to No. two heat exchangers after coming out from the top of reaction kettle, form refrigerant circulation
Chain；The NG of cryogenic gaseous is distributed into three strands of gas materials after No. two heat exchangers；
(2) first order reaction: first strand of gas material first passes through No.1 compressor compresses to setting pressure, then is changed by forecooler
Enter reaction kettle after heat to set temperature, the liquid material at the top of reaction kettle is uniformly sprayed by liquid distribution trough, first strand of gas
Body material is uniformly sprayed by gas distributor, and liquid material flows transversely across column plate, and first strand of gas material passes through venthole, liquid
Body material reacts the high pressure hydrate slurry for generating and containing a large amount of water with first strand of gas material, and high pressure hydrate slurry is by reaction kettle
Pressure is pressed into injection reactor；
(3) second order reaction: second strand of gas material sucks injection reactor by high pressure hydrate slurry, in the expansion of injection reactor
Room is dissipated, high pressure hydrate slurry sprays the pulpous state bead to be formed, and second strand of gas material is reacted with pulpous state bead, small to reduce pulpous state
The water content of ball forms the hydrate slurry of low water content；
(4) third-order reaction: the hydrate slurry of low water content enters cyclone hydraulic separators with tangential direction, meanwhile, third stock gas object
Material enters cyclone hydraulic separators with opposite tangential direction, most of water in the hydrate slurry of low water content and third stock gas object
Material carry out turbulence hybrid reaction formed NGH, NGH along behind the bottom of inner cylinder rotating to cyclone hydraulic separators enter NGH collector,
NGH collector is transported to freezer after being filled with, unreacted water is by partition orifice plate by rotation point in the hydrate slurry of low water content
Continued to react with first strand of gas material as liquid material by the top that No.1 pump is delivered to reaction kettle after to the bottom of outer cylinder,
Liquid material at the top of reaction kettle also derive from taken by No. two pumpings and passed through seawater heat exchanger exchange heat it is fresh to set temperature
Water；
(5) NGH is decomposed: when using gas peak, being closed the connection of No.1 heat exchanger and freezer, is opened heat pipe, heat pipe is added using underground heat
Hot freezer, opens NGH collector, and NGH decomposes release NG, NG and entered pipe after the pressure rating of No. two compressor compresses to setting
Net.
2. according to claim 1 a kind of using NGH as the LNG peak regulating method of medium, it is characterised in that LNG peak adjusting device
Main structure includes LNG storage tank, immersed pump, output pump, No.1 heat exchanger, No. two heat exchangers, reaction kettle, injection reactor, rotations
Liquid/gas separator, No.1 compressor, seawater heat exchanger, NGH collector, No.1 pump, forecooler, No. two pumps, contraction mouth, liquid distributions
Device, bulkhead bracket, gas distributor, diffuser casing, partition orifice plate, inner cylinder, outer cylinder, No.1 valve, No.1 pressure gauge, No. two valves,
No. two pressure gauges, No. three valves, No. three pressure gauges, freezer, No. two compressors, pipe network and heat pipe；LNG storage tank is internally provided with
Immersed pump, immersed pump are connect with output pump, and output pump is connect with No.1 heat exchanger, and No.1 heat exchanger is connect with No. two heat exchangers,
No. two heat exchangers are connect with reaction kettle, injection reactor, cyclone hydraulic separators, No.1 compressor and seawater heat exchanger respectively, spinning liquid
Separator is connected with NGH collector and No.1 pump respectively, and No.1 pump is connect with reaction kettle, and No.1 compressor is connect with forecooler,
Forecooler is connect with reaction kettle, and seawater heat exchanger is connected with reaction kettle and No. two pumps respectively, and reaction kettle passes through contraction mouth and injection
Reactor connection, reaction kettle are internally provided with liquid distribution trough, bulkhead bracket and gas distributor, and liquid distribution trough is located at upper
Portion, bulkhead bracket are located at middle part, and gas distributor is located at lower part, and injection reactor is internally provided with diffuser casing, injection reactor
It is connect by diffuser casing with cyclone hydraulic separators, the inside of cyclone hydraulic separators is divided into inner barrel and outer barrel by partition orifice plate；No. two heat exchange
It is provided with No.1 valve between device and injection reactor, is provided with No.1 pressure gauge between No.1 valve and injection reactor, two
Number No. two valves are provided between heat exchanger and cyclone hydraulic separators, No. two are provided with No. two pressure between valve and cyclone hydraulic separators
Table is provided with No. three valves between No. two heat exchangers and No.1 compressor, No. three are provided with No. three pressures between valve and reaction kettle
Power table, the freezer being independently arranged are connect with No.1 heat exchanger, and freezer is connected to by No. two compressors with pipe network, the outside of freezer and
Heat pipe connection.
3. according to claim 1 to 2 a kind of using NGH as the LNG peak regulating method of medium, it is characterised in that reaction kettle, injection
Reactor, cyclone hydraulic separators constitute third-order reaction container；The inner space of reaction kettle is divided into unit process space by bulkhead bracket,
It is provided with the half of alternating expression in each unit process space and lacks type column plate, is provided with venthole on column plate, liquid distribution trough is gentle
Body distributor is sent into unit process space after liquid material and first strand of gas material are evenly distributed respectively, and liquid material flows through
Tray surfaces, first strand of gas material are contacted by venthole with liquid material, gas-liquid interface constantly update, be liquid material and
The reaction that is sufficiently mixed of first strand of gas material provides heat and mass interface, reduces enlarge-effect when NGH is generated, bulkhead bracket
Partition number, the quantity of plate height and venthole chooses according to the capacity of reaction kettle and the viscosity of high pressure hydrate slurry；One
Number valve, No. two valves and No. three valves are direct-operated regulator, respectively to second strand of gas material, third stock gas material
It is adjusted with the flow of first strand of gas material；No.1 pressure gauge, No. two pressure gauges and No. three pressure gauges are anti-to spraying respectively
The pressure of device, cyclone hydraulic separators and reaction kettle is answered to measure.
4. according to claim 1 to 2 a kind of using NGH as the LNG peak regulating method of medium, it is characterised in that reaction kettle, injection
The temperature of reactor and cyclone hydraulic separators is -2 DEG C, and the pressure of reaction kettle is 6MPa, and the pressure of injection reactor is 5MPa, spinning liquid
The pressure of separator is that 3MPa injection reactor is liquid injection loop type reactor；Bulkhead bracket is made of six pieces of partition grafting.
5. according to claim 1 to 2 a kind of using NGH as the LNG peak regulating method of medium, it is characterised in that reaction kettle and cold
Library is exchanged heat using inner coil pipe or external jacket two ways；Injection reactor, cyclone hydraulic separators are exchanged heat using external jacket mode.
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