CN204573576U - A kind of gasification system of steam ejection liquefaction rock gas of Driven by Solar Energy - Google Patents

A kind of gasification system of steam ejection liquefaction rock gas of Driven by Solar Energy Download PDF

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Publication number
CN204573576U
CN204573576U CN201520168687.XU CN201520168687U CN204573576U CN 204573576 U CN204573576 U CN 204573576U CN 201520168687 U CN201520168687 U CN 201520168687U CN 204573576 U CN204573576 U CN 204573576U
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China
Prior art keywords
valve
heat exchanger
heat
solar energy
natural gas
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CN201520168687.XU
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Chinese (zh)
Inventor
熊亚选
栗博
史建峰
刘蓉
王刚
陈红兵
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Beijing University of Civil Engineering and Architecture
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Beijing University of Civil Engineering and Architecture
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

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  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The utility model provides a kind of gasification system of steam ejection liquefaction rock gas of Driven by Solar Energy, comprise solar energy heat-collecting heat-storage unit and jet-type liquefaction weather gasification unit, described solar energy heat-collecting heat-storage unit is connected by First Heat Exchanger, the second heat exchanger weather gasification unit that liquefies with described jet-type respectively, and described jet-type liquefaction weather gasification unit is connected to high-pressure gas pipeline.The solar energy of collection is directly used in and drives jet-type liquefied natural gas gasifying by gasification system of the present utility model, has not only saved non-renewable fossil energy, has also improved the gasification rate of LNG Liquefied natural gas.

Description

A kind of gasification system of steam ejection liquefaction rock gas of Driven by Solar Energy
Technical field
The utility model relates to liquefied natural gas gasifying field, is specifically related to a kind of gasification system of steam ejection liquefaction rock gas of Driven by Solar Energy.
Background technique
The inevitable consumption along with the energy of economic fast development, and the energy-saving horizontal that the reach of science inevitable requirement is more and more higher (especially for the saving of non-renewable resources).China is as second largest production of energy state and country of consumption in the world, need the LNG Liquefied natural gas that import is a large amount of every year, the gasification of LNG Liquefied natural gas relates to gas-liquid phase transition, and gas-liquid phase transition needs to consume a large amount of heat energy and could be gasified and be heated to required fuel gas temperature.
The gasifying method of current LNG Liquefied natural gas mainly comprises air temperature type, open-shelf, submerged combustion and with intermediate heat medium-type gasifying method; Wherein:
(1) air temperature type gasifying method is using air as heat source, and because air side heat-transfer coefficient is very low, therefore heating load degree of amplitude modulation is smaller;
(2) open-shelf gasifying method utilizes seawater as thermal source, and heating load can carry out free adjusting, but can cause serious impact to the microenvironment in seawater for a long time;
(3) submerged combustion gasifying method adopts the mode of " the heated by natural gas water of combustion gasification, water heats liquefied natural gas again " to gasify to LNG Liquefied natural gas, not only heating load degree of amplitude modulation is less, and need a large amount of rock gas that burns, be unfavorable for energy-conservation;
(4) be adopt seawater as heat source with intermediate heat medium-type gasifying method, this kind of mode must adopt complicated intermediate heat medium and system, and heating load adjustment is complicated, is unfavorable for cost savings.
Model utility content
In view of this, the utility model provides a kind of gasification system of steam ejection liquefaction rock gas of Driven by Solar Energy, is intended to save the energy consumption for non-renewable resources in natural gas gasifying process.
The technical solution adopted in the utility model is specially:
A kind of gasification system of steam ejection liquefaction rock gas of Driven by Solar Energy, comprise solar energy heat-collecting heat-storage unit and jet-type liquefaction weather gasification unit, described solar energy heat-collecting heat-storage unit is connected by First Heat Exchanger, the second heat exchanger weather gasification unit that liquefies with described jet-type respectively, and described jet-type liquefaction weather gasification unit is connected to high-pressure gas pipeline.
In the gasification system of the steam ejection liquefaction rock gas of above-mentioned Driven by Solar Energy, described solar energy heat-collecting heat-storage unit comprises heat storage can, solar thermal collector, First Heat Exchanger and the second heat exchanger, described heat storage can is connected with described solar thermal collector through high temperature pump, and described solar thermal collector is connected to described heat storage can through described First Heat Exchanger, described second heat exchanger successively.
In the gasification system of the steam ejection liquefaction rock gas of above-mentioned Driven by Solar Energy, described solar thermal collector adopts trough type solar heat-collector.
In the gasification system of the steam ejection liquefaction rock gas of above-mentioned Driven by Solar Energy, also comprise the first valve sets, described first valve sets comprises the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve and the 6th valve; Wherein: described first valve is located at the first end of described solar thermal collector, described second valve is located at the second end of described solar thermal collector, and described 4th valve is located between described first valve and the second valve; Described second valve, described 4th valve are connected with described First Heat Exchanger through described 3rd valve respectively, and described second valve, described 4th valve are also connected to described heat storage can through described 5th valve respectively; Described second heat exchanger is connected with described heat storage can through described 6th valve.
In the gasification system of the steam ejection liquefaction rock gas of above-mentioned Driven by Solar Energy, described jet-type liquefaction weather gasification unit comprises liquified natural gas tank, First Heat Exchanger, sparger and the second heat exchanger, described liquified natural gas tank is connected with described First Heat Exchanger through liquefied natural gas pump, described First Heat Exchanger is connected with described second heat exchanger through described sparger, and described second heat exchanger is connected to described high-pressure gas pipeline.
In the gasification system of the steam ejection liquefaction rock gas of above-mentioned Driven by Solar Energy, also comprise the second valve sets, described second valve sets comprises the 7th valve, described pressure maintaining valve and the 8th valve, described 7th valve is located between described liquified natural gas tank and described liquefied natural gas pump, described 8th valve is located between described liquified natural gas tank and described sparger, and described pressure maintaining valve is located between described sparger and described liquified natural gas tank.
In the gasification system of the steam ejection liquefaction rock gas of above-mentioned Driven by Solar Energy, described First Heat Exchanger adopts shell and tube heat exchanger.
In the gasification system of the steam ejection liquefaction rock gas of above-mentioned Driven by Solar Energy, described second heat exchanger adopts plate type heat exchanger.
The beneficial effect that the utility model produces is:
The gasification system of the steam ejection liquefaction rock gas of Driven by Solar Energy of the present utility model is by combining the sustainable stable heating achieving solar energy with heat reservoir by discontinuous solar energy heating, realizing also to impact environment while LNG Liquefied natural gas stablizes gasification, save non-renewable natural gas resource;
System adopts sparger as the vaporizer of LNG Liquefied natural gas, and in sparger, carry out direct contact type mass-and heat-transfer, significantly improve the speed of vaporizer, therefore the loss of heat from heat source is minimized;
The structure of system is simple, easy to process, low cost of manufacture, has both been applicable to small-sized skid-mounted gas filling station, has also can be used for the liquefied natural gas gasifying of big-and-middle-sized gas station.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, more completely the utility model can be understood better.Accompanying drawing described herein is used to provide further understanding of the present utility model, and embodiment and explanation thereof, for explaining the utility model, are not formed improper restriction of the present utility model.
Fig. 1 is the structural representation of the gasification system of the steam ejection liquefaction rock gas of a kind of Driven by Solar Energy of the utility model.
In figure: 1, heat storage can 2, high temperature pump 3, first valve 4, solar thermal collector 5, second valve 6, the 3rd valve 7, First Heat Exchanger 8, second heat exchanger 9, the 4th valve 10, the 5th valve 11, the 6th valve 12, liquified natural gas tank 13, the 7th valve 14, liquefied natural gas pump 15, sparger 16, pressure maintaining valve 17, the 8th valve.
Embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
The gasification system of the steam ejection liquefaction rock gas of a kind of Driven by Solar Energy as shown in Figure 1, comprise solar energy heat-collecting heat-storage unit and jet-type liquefaction weather gasification unit, solar energy heat-collecting heat-storage unit is connected by First Heat Exchanger, the second heat exchanger 8 weather gasification unit that liquefies with jet-type respectively, and jet-type liquefaction weather gasification unit is connected to high-pressure gas pipeline; Wherein:
Solar energy heat-collecting heat-storage unit mainly comprises heat storage can 1, solar thermal collector 4, First Heat Exchanger 7, second heat exchanger 8, first valve sets and corresponding pipeline, and the first valve sets comprises the first valve 3, second valve 5, the 3rd valve 6, the 4th valve 9, the 5th valve 10 and the 6th valve 11; Heat storage can 1 is connected with solar thermal collector 4 through high temperature pump 2, and solar thermal collector 4 is connected to heat storage can 1 through First Heat Exchanger 7, second heat exchanger 8 successively; In first valve sets:
First valve 3 is located at the first end of solar thermal collector 4, and the second valve 5 is located at the second end of solar thermal collector 4, and the 4th valve 9 is located between the first valve 3 and the second valve 5; Second valve 5, the 4th valve 9 are connected with First Heat Exchanger 7 through the 3rd valve 6 respectively, and the second valve 5, the 4th valve 9 are also connected to heat storage can 1 through the 5th valve 10 respectively; Second heat exchanger 8 is connected with heat storage can 1 through the 6th valve 11.
Jet-type liquefaction weather gasification unit mainly comprises liquified natural gas tank 12, First Heat Exchanger 7, sparger 15, second heat exchanger 8 and the second valve sets and corresponding pipeline, second valve sets comprises the 7th valve 13, pressure maintaining valve 16 and the 8th valve 17, liquified natural gas tank 12 is connected with First Heat Exchanger 7 through liquefied natural gas pump 14, First Heat Exchanger 7 is connected with the second heat exchanger 8 through sparger 15, and the second heat exchanger 8 is connected to high-pressure gas pipeline;
In second valve sets:
7th valve 13 is located between liquified natural gas tank 12 and liquefied natural gas pump 14, and the 8th valve 17 is located between liquified natural gas tank 12 and sparger 15, and pressure maintaining valve 16 is located between sparger 15 and liquified natural gas tank 12.
In the gasification system of the steam ejection liquefaction rock gas of above-mentioned Driven by Solar Energy, the workflow of solar energy heat-collecting heat-storage unit and jet-type liquefaction weather gasification unit is respectively:
The workflow of solar energy heat-collecting heat-storage unit:
Conduction oil in heat reservoir 1 enters in solar thermal collector 4 through the first valve 3 and is heated to 320 DEG C under the effect of high temperature pump 2, then First Heat Exchanger 7 heats liquefied natural gas is entered to gasification through the second valve 5 and the 3rd valve 6, gaseous natural gas temperature reaches 300 DEG C, then conduction oil enters the rock gas after the second heat exchanger 8 heating and gasifying, and temperature is reduced to the conduction oil after below 100 DEG C and returns heat reservoir 1 through the 6th valve 11.When the heat that solar thermal collector 4 absorbs is greater than the total amount of heat of First Heat Exchanger 7 and the second heat exchanger 8 needs, close the 4th valve 9, regulate the aperture of the 5th valve 10, make unnecessary heat be stored into heat reservoir 1 in the mode of high temperature heat conductive oil.When the total amount of heat that the heat that solar thermal collector 4 absorbs needs lower than First Heat Exchanger 7 and the second heat exchanger 8, close the 5th valve 10, regulate the aperture of the 4th valve 9, regulate the flow of high temperature pump 2, make First Heat Exchanger 7 and the second heat exchanger 8 obtain the total amount of heat needed, when the heat that solar thermal collector 4 absorbs close to zero time, cut off the first valve 3, second valve 5 and the 5th valve 10, regulate the flow of high temperature pump 2, make First Heat Exchanger 7 and the second heat exchanger 8 obtain the total amount of heat needed.
The workflow of jet-type liquefaction weather gasification unit:
LNG Liquefied natural gas in liquified natural gas tank 12 enters in First Heat Exchanger 7 through the 7th valve 13 and liquefied natural gas pump 14 and gasifies under the effect of liquefied natural gas pump 14, be superheated to temperature 280-300 DEG C, more than pressure 5.0MPa, become high pressure superheater rock gas, then high pressure superheater rock gas enters in jet pump 15 and sprays, carry out contact heat transfer mass transfer with the low pressure liquefied natural gas of coming from the 7th valve injection and become high-pressure natural gas, then most of high-pressure natural gas enters the second heat exchanger 8 and is heated to more than 0 DEG C and sends into high-pressure gas pipeline, another fraction high-pressure natural gas returns liquified natural gas tank 12 after pressure maintaining valve 16 pressure regulation, keep pressure stability in liquified natural gas tank 12.
Heat by First Heat Exchanger 7 the low-temp low-pressure LNG Liquefied natural gas that the High Temperature High Pressure prevention of natural gas ejected that obtains comes from the 8th valve 17, carry out mixing at sparger, heat and mass, form high pressure gaseous rock gas.According to the method, the gasification rate of LNG Liquefied natural gas can improve more than 10%, and uses solar energy as thermal source completely, and system works is stablized.
As a kind of preferred embodiment, the heat-transfer working medium in solar energy heat-collecting heat-storage unit selects conduction oil, and solar thermal collector 4 adopts trough type solar heat-collector, and First Heat Exchanger 7 adopts shell and tube heat exchanger, and the second heat exchanger 8 adopts plate type heat exchanger.
As mentioned above; embodiment of the present utility model is explained; obviously, as long as do not depart from fact inventive point of the present utility model and effect, will be readily apparent to persons skilled in the art distortion, is also all included within protection domain of the present utility model.

Claims (8)

1. the gasification system of the steam ejection liquefaction rock gas of a Driven by Solar Energy, it is characterized in that, comprise solar energy heat-collecting heat-storage unit and jet-type liquefaction weather gasification unit, described solar energy heat-collecting heat-storage unit is connected by First Heat Exchanger, the second heat exchanger weather gasification unit that liquefies with described jet-type respectively, and described jet-type liquefaction weather gasification unit is connected to high-pressure gas pipeline.
2. the gasification system of the steam ejection liquefaction rock gas of Driven by Solar Energy according to claim 1, it is characterized in that, described solar energy heat-collecting heat-storage unit comprises heat storage can, solar thermal collector, First Heat Exchanger and the second heat exchanger, described heat storage can is connected with described solar thermal collector through high temperature pump, and described solar thermal collector is connected to described heat storage can through described First Heat Exchanger, described second heat exchanger successively.
3. the gasification system of the steam ejection liquefaction rock gas of Driven by Solar Energy according to claim 2, is characterized in that, described solar thermal collector adopts trough type solar heat-collector.
4. the gasification system of the steam ejection liquefaction rock gas of Driven by Solar Energy according to claim 2, it is characterized in that, also comprise the first valve sets, described first valve sets comprises the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve and the 6th valve; Wherein:
Described first valve is located at the first end of described solar thermal collector, and described second valve is located at the second end of described solar thermal collector, and described 4th valve is located between described first valve and the second valve;
Described second valve, described 4th valve are connected with described First Heat Exchanger through described 3rd valve respectively, and described second valve, described 4th valve are also connected to described heat storage can through described 5th valve respectively;
Described second heat exchanger is connected with described heat storage can through described 6th valve.
5. the gasification system of the steam ejection liquefaction rock gas of Driven by Solar Energy according to claim 1, it is characterized in that, described jet-type liquefaction weather gasification unit comprises liquified natural gas tank, First Heat Exchanger, sparger and the second heat exchanger, described liquified natural gas tank is connected with described First Heat Exchanger through liquefied natural gas pump, described First Heat Exchanger is connected with described second heat exchanger through described sparger, and described second heat exchanger is connected to described high-pressure gas pipeline.
6. the gasification system of the steam ejection liquefaction rock gas of Driven by Solar Energy according to claim 5, is characterized in that, also comprises the second valve sets, and described second valve sets comprises the 7th valve, pressure maintaining valve and the 8th valve; Wherein: described 7th valve is located between described liquified natural gas tank and described liquefied natural gas pump, described 8th valve is located between described liquified natural gas tank and described sparger, and described pressure maintaining valve is located between described sparger and described liquified natural gas tank.
7. the gasification system of the steam ejection liquefaction rock gas of Driven by Solar Energy according to claim 1, is characterized in that, described First Heat Exchanger adopts shell and tube heat exchanger.
8. the gasification system of the steam ejection liquefaction rock gas of Driven by Solar Energy according to claim 1, is characterized in that, described second heat exchanger adopts plate type heat exchanger.
CN201520168687.XU 2015-03-24 2015-03-24 A kind of gasification system of steam ejection liquefaction rock gas of Driven by Solar Energy Withdrawn - After Issue CN204573576U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104728599A (en) * 2015-03-24 2015-06-24 北京建筑大学 Solar energy driven spraying liquefied natural gas gasification system and solar energy driven spraying liquefied natural gas gasification method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104728599A (en) * 2015-03-24 2015-06-24 北京建筑大学 Solar energy driven spraying liquefied natural gas gasification system and solar energy driven spraying liquefied natural gas gasification method

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Granted publication date: 20150819

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C25 Abandonment of patent right or utility model to avoid double patenting