CN206449406U - A kind of LNG gasification station cold, heat and power triple supply system - Google Patents
A kind of LNG gasification station cold, heat and power triple supply system Download PDFInfo
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- CN206449406U CN206449406U CN201621444269.XU CN201621444269U CN206449406U CN 206449406 U CN206449406 U CN 206449406U CN 201621444269 U CN201621444269 U CN 201621444269U CN 206449406 U CN206449406 U CN 206449406U
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- lng
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Abstract
The utility model is related to a kind of LNG gasification station cold, heat and power triple supply system, the LNG storage tank connected including pipeline successively, air exhauster, LNG refrigerant heat exchangers, air-heating type gasifier, heater utilizing waste heat, pressure-reducing valve, flow detector and generating set, the shell side that LNG passes through LNG refrigerant heat exchangers, the tube side interior circulation of LNG refrigerant heat exchangers has refrigerant, pipeline is connected with coolant storage tank successively between the tube side outlet of LNG refrigerant heat exchangers and entrance, coolant refrigeration agent heat exchanger, coolant refrigeration agent heat exchanger interior circulation has refrigerant, pipeline connection between LNG storage tank output end and air-heating type gasifier input, the exhaust outlet pipeline of generating set is connected with waste heat recovery plant, the output end pipeline of waste heat recovery plant connects the input of heater utilizing waste heat.The beneficial effects of the utility model are：Realize the recovery of LNG cold energy, it is to avoid cold pollution is caused to environment；The natural gas at the heat preheated burning chamber inlet end of collection, improves generating efficiency, while heating LNG, is allowed to be changed into natural gas.
Description
Technical field
The utility model is related to a kind of LNG gasification station cold, heat and electricity triple supply system.
Background technology
Natural gas and coal, oil simultaneously claim the world three the big energy, and with respect to coal and oil, natural gas is not only cleaner, calorific value
Height, high financial profit, and reserves are huge.Contain the cold energy of substantial amounts of high-quality in LNG (liquefied natural gas).LNG is by gas
State natural gas is through being dehydrated desulfurizing and purifying processing, and normal pressure liquefaction is -162 DEG C of liquified natural gas, and volume is about that equivalent gaseous state is natural
The 1/600 of gas, therefore be readily transported.Acting not only as combustion material heat supply can use, and carry substantial amounts of cold energy.Often give birth to
One ton of LNG of production need to consume power about 850kWh, and LNG is heated up into gasification to normal temperature state before in supply user, LNG gasification
Process discharges substantial amounts of cold energy, about 830kJ/kg.
At present, most LNG receiving stations mainly pass through open-shelf seawater using seawater or air as thermal source in the world
Gasifier, or using the part LNG combustions heat as thermal source, by submerged combustion gasifier come heating and gasifying LNG.These cold energy are not
Certain influence can be produced to the ecological of surrounding by only wasting, and being directly discharged to surrounding environment.Make full use of LNG cold energy not
Can only reduce needs the refrigeration cost at colod-application family, and advantageously reduces LNG use cost, promotes the health hair of LNG industries
Exhibition, promotes the construction of energy-saving and emission-reduction, creates huge economy, society and environmental benefit, thus with great economic and technical
Meaning and extremely far-reaching society and strategic importance.
Utility model content
The technical problems to be solved in the utility model is：Based on above mentioned problem, there is provided a kind of LNG gasification station cold, heat and electricity three-way
For being.
The utility model solves the technical scheme that its technical problem used：A kind of LNG gasification station cold, heat and electricity triple supply
System, including successively pipeline connection LNG storage tank, air exhauster, LNG- refrigerant heat exchangers, air-heating type gasifier, heater utilizing waste heat,
Pressure-reducing valve, flow detector and generating set, LNG pass through the shell side of LNG- refrigerant heat exchangers, the pipe of LNG- refrigerant heat exchangers
Journey interior circulation has a refrigerant, between the tube side outlet of LNG- refrigerant heat exchangers and entrance successively pipeline be connected with coolant storage tank, refrigerant-
Refrigerant heat exchanger, the refrigerant of the promising indoor offer cold of refrigerant-refrigerant heat exchanger interior circulation, LNG storage tank output end with
Pipeline connection between air-heating type gasifier input, the exhaust outlet pipeline of generating set connects the used heat of promising indoor offer heat
Retracting device, the output end pipeline of waste heat recovery plant connects the input of heater utilizing waste heat.
Further, refrigerant is the ethylene glycol solution that volumetric concentration is 50%.
Further, provided with two pipelines in parallel between LNG storage tank output end and air-heating type gasifier input, and often
Magnetic valve, respectively magnetic valve A and magnetic valve B are provided with bar pipeline.
Further, the output end of LNG storage tank is provided with opening valve, and the input of air exhauster is provided with magnetic valve C.
Further, generating set includes generator, turbine, combustion chamber, power transmission shaft and compressor, and generating set is to room
Interior offer heat, is provided with preheater, the output end pipeline connection of waste heat recovery plant between flow detector and combustion chamber
The input of preheater.
The beneficial effects of the utility model are：(1) LNG gasification station system and traditional two sets of independent systems of central cooling system
System is combined, and is realized energy complementation utilization, is improved efficiency of energy utilization；(2) recovery of LNG cold energy is realized, it is to avoid environment is made
Into cold pollution；(3) refrigerant exchanges heat in refrigerant-refrigerant heat exchanger, realizes the supercooling of refrigerant, improves kind of refrigeration cycle
COP, saves operating cost；(4) present invention transformation is convenient, only needs to set up LNG- refrigerants on the basis of existing LNG gasification station and changes
Hot device, refrigerant-refrigerant heat exchanger, air exhauster are that indoor refrigeration can be achieved；(5) heat using waste heat recovery plant collection is pre-
The natural gas of hot chamber arrival end, improves generating efficiency；(6) the heat LNG collected using waste heat recovery plant, is allowed to
It is changed into natural gas, instead of the use of water-bath type heater, plays the effect of energy-conservation.
Brief description of the drawings
The utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is cold energy use flow chart of the present utility model；
Fig. 3 was SAPMAC method schematic diagram；
Wherein：1.LNG storage tanks, 2. air exhausters, 3.LNG- refrigerant heat exchangers, 4. coolant storage tanks, 5. refrigerants-refrigerant heat exchanger
Device, 6. power transmission shafts, 7. compressors, 8. waste heat recovery plants, 9. flow detectors, 10. pressure-reducing valves, 11. heater utilizing waste heats,
12. air-heating type gasifier, 13. magnetic valve A, 14. magnetic valve B, 15. magnetic valve C, 16. opening valves, 17. preheaters, 18. burnings
Room, 19. turbines, 20. generators, 21. condensers, 22. choke valves, 23. evaporators, 24. compressors.
Embodiment
The utility model is further described presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram only to show
Meaning mode illustrates basic structure of the present utility model, therefore it only shows the composition relevant with the utility model.
A kind of LNG gasification station cold, heat and power triple supply system as shown in Figure 1, including successively the LNG storage tank 1 of pipeline connection,
Air exhauster 2, LNG- refrigerant heat exchangers 3, air-heating type gasifier 12, heater utilizing waste heat 11, pressure-reducing valve 10, the and of flow detector 9
Generating set, LNG has refrigerant, LNG- by the shell sides of LNG- refrigerant heat exchangers 3, the tube side interior circulation of LNG- refrigerant heat exchangers 3
Pipeline is connected with coolant storage tank 4, refrigerant-refrigerant heat exchanger 5 successively between the tube side outlet of refrigerant heat exchanger 3 and entrance, cold
The refrigerant of the promising indoor offer cold of the interior circulation of matchmaker-refrigerant heat exchanger 5, the output end of LNG storage tank 1 and air-heating type gasifier 12
Pipeline connection between input, the exhaust outlet pipeline of generating set connects the waste heat recovery plant 8 of promising indoor offer heat, gives up
The output end pipeline of heat reclamation device 8 connects the input of heater utilizing waste heat 11.
Refrigerant is the ethylene glycol solution that volumetric concentration is 50%.
Provided with two pipelines in parallel between the output end of LNG storage tank 1 and the input of air-heating type gasifier 12, and every pipeline
On be provided with magnetic valve, respectively magnetic valve A13 and magnetic valve B14.
The output end of LNG storage tank is provided with opening valve 16, and the input of air exhauster is provided with magnetic valve C15.
Generating set includes generator 20, turbine 19, combustion chamber 18, power transmission shaft 6 and compressor 7, and generating set is to room
Interior offer heat, is provided with preheater 17, the output end pipe of waste heat recovery plant 8 between flow detector 9 and combustion chamber 18
Road connects the input of preheater 17.The used heat that generator is vented out is collected by waste heat recovery plant 8, and waste heat recovery plant 8 is received
The natural gas of the arrival end of heat preheated burning room 18 of collection, improves generating efficiency.
In use, open LNG storage tank from pressure charging system, boost to about 0.6MPa, be then turned on LNG storage tank opening valve
LNG is transported in LNG- refrigerant heat exchangers and carries out heat exchange with refrigerant, LNG portion gasification heating, temperature is risen to by -162 DEG C
20 DEG C or so, while cold passed into refrigerant, gaseous natural gas is by air-heating type gasifier, heater utilizing waste heat, pressure-reducing valve, most
Gas equipment or generating set are transported to eventually.
As Fig. 2 shows, refrigerant exchanges heat in refrigerant-refrigerant heat exchanger, realizes the supercooling of refrigerant, then follow by supercooling
Ring constantly provides cold for interior.
Cross SAPMAC method such as Fig. 3 to show, the gaseous refrigerant of low-temp low-pressure becomes the gaseous state system of HTHP by compressor 24
Cryogen, then by condenser 21, become the liquid refrigerant of cryogenic high pressure, then by refrigerant-refrigerant heat exchanger 5, realize system
The supercooling of cryogen, then by choke valve 22, become the low-temp low-pressure liquid refrigerant of supercooled state, finally by evaporator 23,
Liquid refrigerant evaporation endothermic, realizes the purpose of indoor cooling.
When flow monitoring device detects natural gas gas consumption, it is impossible to meet during user's request, can adjust air temperature type gasification
Device magnetic valve A, magnetic valve B aperture, the LNG of LNG storage tank is directly added by air-heating type gasifier, heater utilizing waste heat
Heat, supplemental natural gas air demand.Flow monitoring device and magnetic valve A, B, C are electrically connected with the controller respectively.By traffic monitoring
The natural gas of device can be used for generating electricity, for users to use, the power network that unnecessary electricity can also be conveyed.
Waste heat recovery plant collects the used heat that natural gas power process is produced, and used heat is used for heater utilizing waste heat heat supply, together
When for building the heating hot water in user room, domestic hot-water.
Store up cold using coolant storage tank, can will supply peak time unnecessary cold storage, when supplying at a low ebb
The unnecessary cold energy that refrigerant is stored is discharged again, the demand with colod-application family is met, so as to play a part of cooling peak regulation, protected
The cold security and stability of testimony, improves the adaptability of system.
Refrigerant exchanges heat in refrigerant-refrigerant heat exchanger, realizes the supercooling of refrigerant, improves the COP of kind of refrigeration cycle,
Save operating cost.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality
The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right
Property scope.
Claims (5)
1. a kind of LNG gasification station cold, heat and power triple supply system, it is characterized in that：Including pipeline successively connect LNG storage tank (1), take out
Blower fan (2), LNG- refrigerant heat exchangers (3), air-heating type gasifier (12), heater utilizing waste heat (11), pressure-reducing valve (10), flow detection
Device (9) and generating set, LNG are followed in the tube side of LNG- refrigerant heat exchangers (3) by the shell sides of LNG- refrigerant heat exchangers (3)
Ring has a refrigerant, between the tube side outlet of LNG- refrigerant heat exchangers (3) and entrance successively pipeline be connected with coolant storage tank (4), refrigerant-
Refrigerant heat exchanger (5), the refrigerant of the promising indoor offer cold of refrigerant-refrigerant heat exchanger (5) interior circulation, LNG storage tank (1)
Pipeline connection between output end and air-heating type gasifier (12) input, the exhaust outlet pipeline of generating set connects promising interior and carried
The waste heat recovery plant (8) of heating load, the input of the output end pipeline connection heater utilizing waste heat (11) of waste heat recovery plant (8)
End.
2. a kind of LNG gasification station cold, heat and power triple supply system according to claim 1, it is characterized in that：Described refrigerant is
Volumetric concentration is 50% ethylene glycol solution.
3. a kind of LNG gasification station cold, heat and power triple supply system according to claim 1, it is characterized in that：Described LNG storage tank
(1) provided with two pipelines in parallel between output end and air-heating type gasifier (12) input, and it is provided with every pipeline
Magnetic valve, respectively magnetic valve A (13) and magnetic valve B (14).
4. a kind of LNG gasification station cold, heat and power triple supply system according to claim 1, it is characterized in that：Described LNG storage tank
Output end be provided with opening valve (16), the input of air exhauster is provided with magnetic valve C (15).
5. a kind of LNG gasification station cold, heat and power triple supply system according to claim 1, it is characterized in that：Described generator
Group includes generator (20), turbine (19), combustion chamber (18), power transmission shaft (6) and compressor (7), and generating set is carried to interior
Heating load, is provided with preheater (17), the output of waste heat recovery plant (8) between flow detector (9) and combustion chamber (18)
The input of end pipe road connection preheater (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444269.XU CN206449406U (en) | 2016-12-27 | 2016-12-27 | A kind of LNG gasification station cold, heat and power triple supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444269.XU CN206449406U (en) | 2016-12-27 | 2016-12-27 | A kind of LNG gasification station cold, heat and power triple supply system |
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| Publication Number | Publication Date |
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| CN206449406U true CN206449406U (en) | 2017-08-29 |
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| CN201621444269.XU Expired - Fee Related CN206449406U (en) | 2016-12-27 | 2016-12-27 | A kind of LNG gasification station cold, heat and power triple supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764414A (en) * | 2016-12-27 | 2017-05-31 | 常州大学 | A kind of LNG gasification station cold, heat and power triple supply system |
-
2016
- 2016-12-27 CN CN201621444269.XU patent/CN206449406U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764414A (en) * | 2016-12-27 | 2017-05-31 | 常州大学 | A kind of LNG gasification station cold, heat and power triple supply system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170829 Termination date: 20181227 |