CN204284927U - A kind of LNG Liquefied natural gas self power generation open type gasification system - Google Patents
A kind of LNG Liquefied natural gas self power generation open type gasification system Download PDFInfo
- Publication number
- CN204284927U CN204284927U CN201420628234.6U CN201420628234U CN204284927U CN 204284927 U CN204284927 U CN 204284927U CN 201420628234 U CN201420628234 U CN 201420628234U CN 204284927 U CN204284927 U CN 204284927U
- Authority
- CN
- China
- Prior art keywords
- thermal medium
- medium oil
- seawater
- liquefied natural
- natural gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a kind of LNG Liquefied natural gas self power generation open type gasification system.It comprises power facility, thermal medium oil waste heat recovering mechanism, seawater to make heat exchange mechanism and liquefied natural gas gasifying mechanism; Power facility comprises gas turbine powered generator; The gas exhaust duct of gas turbine powered generator is connected with the smoke inlet of thermal medium oil waste heat recovering mechanism; Seawater to make heat exchange mechanism comprises thermal medium oil/seawater heat exchanger; The coil pipe of thermal medium oil waste heat recovering mechanism is connected with the tube side of thermal medium/seawater heat exchanger, and the outlet of the tube side of thermal medium oil/seawater heat exchanger is connected with the thermal medium entrance of thermal medium oil waste heat recovering mechanism; Liquefied natural gas gasifying mechanism comprises seawater/LNG Liquefied natural gas heat exchanger; The shell side of thermal medium oil/seawater heat exchanger is connected with the shell side of seawater/LNG Liquefied natural gas heat exchanger, and the tube side of seawater/LNG Liquefied natural gas heat exchanger is connected with the outer defeated pipeline of rock gas.This modularization LNG Liquefied natural gas self power generation open type gasification system can be used as complete autonomous system, can use by independent operating under without extraneous power conditions.
Description
Technical field
The utility model relates to a kind of liquefied natural gas gasifying system, is specifically related to a kind of LNG Liquefied natural gas self power generation open type gasification system.
Background technique
Along with the fast development in China's natural gas market, the ratio of rock gas shared by energy supply increases sharply, and the contradiction of natural gas supply deficiency is more and more obvious.Liquefied natural gas (LNG)-throughput just grows at top speed with the speed of annual about 12%, becomes one of the swiftest and the most violent energy industry of growth.LNG receiving station has also started construction upsurge, except conventional land receiving terminal, along with the development of new technology and special equipment, has emerged a lot of innovative design concept.As utilized the mode such as Floating Storage regasification plant (FSRU), modularization receiving terminal, marine legacy platform transformation, these devices are all the separate units away from land, and outside resources cannot be relied on to supply.
Because the LNG receiving terminal of new mode is usually away from land, the consumers such as its sea water pump, LNG pump, BOG compressor need directly to be powered by generator set.Typical combustion gas turbine is generally merely able to be converted into air horsepower by 28% ~ 34% of institute's consume fuel energy, and the fuel energy of remaining part is then lost by exhaust or thermal radiation, not only pollutes, and is also the significant wastage of energy simultaneously.The high-temperature flue gas that natural gas power unit produces is discharged by chimney, and under operating mode at full capacity, flue-gas temperature is usually within the scope of 300 ~ 450 DEG C.
Downstream user utilizes LNG first must make its heating and gasifying, and gasification is an endothermic process, and traditional large-scale land receiving station adopts open-frame type gasifier (ORV) or submerged combustion vaporizer (SCV) two kinds of gasification modes usually.Wherein submerged combustion vaporizer is by gas-firing heating water, and LNG is gasified by hot bath, and submerged combustion vaporizer needs to consume a large amount of rock gases, less economical, usually can only as standby equipment; Open-frame type gasifier, owing to make use of natural heat, is the gasification mode of comparatively economical rationality, but it need use a large amount of seawater to gasify, and the energy consumption of sea water pump is comparatively large, exists and optimizes space.
In sum, the heat energy in the high-temperature flue gas of combustion gas turbine discharge on the one hand is not utilized, and causes the waste of the energy, and LNG gasification needs a large amount of external heat, so need to propose a kind of Novel liquefied natural gas self power generation open type gasification installation on the other hand.
Model utility content
The purpose of this utility model is to provide a kind of LNG Liquefied natural gas self power generation open type gasification system, the utility model gasification system utilizes residual neat recovering system by the heat recovery contained by the flue gas of jet dynamic control, utilize its heat indirect gasification LNG, the seawater amount had needed for LNG gasification is less than traditional gasification mode greatly, has the advantages that LNG gasification efficiency is high, heat recovery efficiency is high.
LNG Liquefied natural gas self power generation open type gasification system provided by the utility model, comprises power facility, thermal medium oil waste heat recovering mechanism, seawater to make heat exchange mechanism and liquefied natural gas gasifying mechanism;
Described power facility comprises gas turbine powered generator; The gas exhaust duct of described gas turbine powered generator is connected with the smoke inlet of described thermal medium oil waste heat recovering mechanism;
Described seawater to make heat exchange mechanism comprises thermal medium oil/seawater heat exchanger; The coil pipe of described thermal medium oil waste heat recovering mechanism is connected with the tube side of described thermal medium oil/seawater heat exchanger, and the outlet of the tube side of described thermal medium oil/seawater heat exchanger is connected with the thermal medium entrance of described thermal medium oil waste heat recovering mechanism;
Described liquefied natural gas gasifying mechanism comprises seawater/LNG Liquefied natural gas heat exchanger; The shell side of described thermal medium oil/seawater heat exchanger is connected with the shell side of described seawater/LNG Liquefied natural gas heat exchanger, and the tube side of described seawater/LNG Liquefied natural gas heat exchanger is connected with the outer defeated pipeline of rock gas.
In described LNG Liquefied natural gas self power generation open type gasification system, the flue gas pressures of discharging after described gas turbine powered generator acting is down to atmospheric pressure and is entered in described thermal medium oil waste heat recovering mechanism, with a large amount of available heat energy in flue gas, reclaim heat by thermal medium oil waste heat recovering mechanism.
In described LNG Liquefied natural gas self power generation open type gasification system, the thermal medium oil-in end of described thermal medium oil waste heat recovering mechanism connects a thermal medium oil circulating pump; The flue gas (300 DEG C-450 DEG C) produced after being done work by described gas turbine powered generator carries out heat exchange with the thermal medium oil in the coil pipe of described thermal medium oil waste heat recovering mechanism, and after heat exchange, unserviceable fume emission enters air.
In described LNG Liquefied natural gas self power generation open type gasification system, described gasification system also comprises a thermal medium oil subsidy charging system, and described thermal medium oil subsidy charging system comprises the thermal medium oil expansion drum, thermal medium oil make-up pump and the thermal medium oil tank that are communicated with successively; Described thermal medium expansion drum is connected with described thermal medium oil circulating pump; When the leakage of thermal medium oil causes underfed or causes the deterioration of thermal medium oil rotten due to high temperature oxidation, supplemental heat medium can be carried out by described thermal medium oil subsidy charging system.
In described LNG Liquefied natural gas self power generation open type gasification system, the outer defeated pipeline of described rock gas is connected with the fuel gas entrance of described gas turbine powered generator.
In described LNG Liquefied natural gas self power generation open type gasification system, the outer defeated pipeline of described rock gas is connected with the smoke inlet of described thermal medium oil waste heat recovering mechanism.
The utility model LNG Liquefied natural gas self power generation open type gasification system, thermal medium oil is pressurized to about 1MPa by described thermal medium oil circulating pump and injects in the coil pipe of described thermal medium oil waste heat recovering mechanism, heat exchange is warmed up to more than 200 DEG C and seawater to make heat exchange, heating seawater, thermal medium oil temperature drops to about 100 DEG C Posterior circle and gets back to thermal medium oil circulating pump entrance, re-injects heat recovery unit inner coil pipe by recycle pump.By the seawater that heats by described liquefied natural gas gasifying mechanism, with LNG heat exchange, low temperature LNG (-160 degrees Celsius) is heated to more than 0 degree Celsius, by transporting to downstream user outside described rock gas multi-purpose station pipeline.LNG vaporizer also can adopt the heat exchanger of traditional open-frame type gasifier or other applicable forms.
The utility model has following beneficial effect:
By the pattern that power generation system combines with LNG gasification system, the thermal source that the waste heat that spacing utilizes heat recovery unit to reclaim power generation system gasifies as LNG, namely achieve the recycling of energy, solve Utilizing question, raising gas utilization total efficiency that LNG stores boil-off gas, additionally reduce the introducing of other heat source fluids a large amount of needed for LNG gasification, stable power supply can be provided simultaneously.This modularization LNG Liquefied natural gas self power generation open type gasification system can be used as complete autonomous system, can use by independent operating under without extraneous power conditions.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model LNG Liquefied natural gas self power generation open type gasification system.
In figure, each mark is as follows:
1 thermal medium oil make-up pump, 2 thermal medium oil expansion drums, 3 thermal medium oil tanks, 4 gas turbine powered generators, 5 thermal medium oil circulating pumps, 6 thermal medium oil waste heat recovering device, 7 thermal medium oil/seawater heat exchangers, 8 seawater/LNG Liquefied natural gas heat exchangers.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As shown in Figure 1, the utility model LNG Liquefied natural gas self power generation open type gasification system comprises power facility, thermal medium oil waste heat recovering device 6, seawater to make heat exchange mechanism and liquefied natural gas gasifying mechanism.In the utility model, power facility comprises gas turbine powered generator 4, the gas exhaust duct of gas turbine powered generator 4 is connected with the smoke inlet of thermal medium oil waste heat recovering device 6, the flue gas pressures of discharging after doing work to make gas turbine powered generator 4 is down to atmospheric pressure and is entered in thermal medium oil waste heat recovering device 6, with a large amount of available heat energy in flue gas, reclaim heat by thermal medium oil waste heat recovering device 6.Seawater to make heat exchange mechanism comprises thermal medium oil/seawater heat exchanger 7, the coil pipe of thermal medium oil waste heat recovering device 6 is connected with the tube side of thermal medium oil/seawater heat exchanger 7, and the outlet of the tube side of thermal medium oil/seawater heat exchanger 7 is connected with the thermal medium entrance of thermal medium oil waste heat recovering device 6.In the utility model, liquefied natural gas gasifying mechanism comprises seawater/LNG Liquefied natural gas heat exchanger 8, and the shell side of thermal medium oil/seawater heat exchanger 7 is connected with the shell side of seawater/LNG Liquefied natural gas heat exchanger 8, utilizes thermal medium oil to heat seawater; The tube side of seawater/LNG Liquefied natural gas heat exchanger 8 is connected with the outer defeated pipeline (not marking in figure) of rock gas, achieves outer defeated to downstream user of rock gas; And, the outer defeated pipeline of this rock gas is also connected with the smoke inlet of thermal medium oil waste heat recovering device 6 with the fuel gas entrance of gas turbine powered generator 4 respectively, fuel gas is provided for being respectively gas turbine powered generator 4, and when flue gas deficiency discharged by gas turbine powered generator 4, for thermal medium oil waste heat recovering device 6 provides fuel gas fuel combustion as a supplement, heat hot Medium Oil.
Under normal circumstances, pressurize is carried out by thermal medium oil expansion drum 2, only need disposable injection thermal medium oil without the need to additionally supplementing, if but when thermal medium shortage of oil, with thermal medium oil make-up pump 1, thermal medium oil can be injected in the thermal medium oil expansion drum 2 before thermal medium oil circulating pump 5 in thermal medium oil tank 3, and then add in thermal medium oil circulation process.
When utilizing the utility model LNG Liquefied natural gas self power generation open type gasification system to carry out LNG gasification, carry out in accordance with the following steps:
Partial gasification multi-purpose station pipeline gas and LNG boil-off gas are generated electricity as fuel gas supply gas turbine powered generator 4, fuel gas supplying temperature is 0 DEG C, and suction pressure is 3MPag.After generating, flue-gas temperature is 450 DEG C, is transported to thermal medium oil waste heat recovering device 6, (is selected in the present embodiment by thermal medium oil
66) be heated to 220 DEG C, when exhaust gas volumn deficiency, the mode heat hot Medium Oil of fuel gas afterburning can be adopted to ensure its output temperature.
In thermal medium oil/seawater circulation heat exchange 7, thermal medium oil is pressurized to 1MPag by thermal medium oil circulating pump 5 and injects coil pipe in thermal medium oil waste heat recovering device 6, is heated to 220 DEG C and enters in the tube side of thermal medium oil/seawater circulation heat exchange 7 (thermal medium oil/ethylene glycol heat exchanger) and carry out heat exchange with seawater; The temperature of heat exchange after heat Medium Oil drops to 100 DEG C, pressure drops to the entrance that 0.02MPag Posterior circle gets back to thermal medium oil circulating pump 5, completes recuperated cycle by thermal medium oil circulating pump 5 coil pipe injected in thermal medium oil waste heat recovering device 6 that again pressurizes.
In seawater/liquefied natural gas gasifying heat exchange 8, the LNG Liquefied natural gas (-160 DEG C) of high pressure (10MPa) enter in seawater/LNG Liquefied natural gas heat exchanger 8 with sea water solution heat exchange, ocean temperature controls to drain into sea after low 5 DEG C than inlet temperature, LNG Liquefied natural gas is heated to more than 0 DEG C and enters the outer defeated pipeline of rock gas, to downstream air feed, one of them branch road as the supplementary source of the gas of fuel gas to gas turbine powered generator 4 and thermal medium oil waste heat recovering device 6 air feed.
Claims (5)
1. a LNG Liquefied natural gas self power generation open type gasification system, is characterized in that: it comprises power facility, thermal medium oil waste heat recovering mechanism, seawater to make heat exchange mechanism and liquefied natural gas gasifying mechanism;
Described power facility comprises gas turbine powered generator; The gas exhaust duct of described gas turbine powered generator is connected with the smoke inlet of described thermal medium oil waste heat recovering mechanism;
Described seawater to make heat exchange mechanism comprises thermal medium oil/seawater heat exchanger; The coil pipe of described thermal medium oil waste heat recovering mechanism is connected with the tube side of described thermal medium/seawater heat exchanger, and the outlet of the tube side of described thermal medium oil/seawater heat exchanger is connected with the thermal medium entrance of described thermal medium oil waste heat recovering mechanism;
Described liquefied natural gas gasifying mechanism comprises seawater/LNG Liquefied natural gas heat exchanger; The shell side of described thermal medium oil/seawater heat exchanger is connected with the shell side of described seawater/LNG Liquefied natural gas heat exchanger, and the tube side of described seawater/LNG Liquefied natural gas heat exchanger is connected with the outer defeated pipeline of rock gas.
2. gasification system according to claim 1, is characterized in that: the thermal medium oil-in end of described thermal medium oil waste heat recovering mechanism connects a thermal medium oil circulating pump.
3. gasification system according to claim 2, is characterized in that: described gasification system also comprises a thermal medium oil subsidy charging system, and described thermal medium replenishment system comprises the thermal medium oil expansion drum, thermal medium oil make-up pump and the thermal medium oil tank that are communicated with successively; Described thermal medium oil expansion drum is connected with described thermal medium recycle pump.
4. the gasification system according to any one of claim 1-3, is characterized in that: the outer defeated pipeline of described rock gas is connected with the fuel gas entrance of described gas turbine powered generator.
5. gasification system according to claim 4, is characterized in that: the outer defeated pipeline of described rock gas is connected with the smoke inlet of described thermal medium oil waste heat recovering mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628234.6U CN204284927U (en) | 2014-10-27 | 2014-10-27 | A kind of LNG Liquefied natural gas self power generation open type gasification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628234.6U CN204284927U (en) | 2014-10-27 | 2014-10-27 | A kind of LNG Liquefied natural gas self power generation open type gasification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284927U true CN204284927U (en) | 2015-04-22 |
Family
ID=52868087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420628234.6U Withdrawn - After Issue CN204284927U (en) | 2014-10-27 | 2014-10-27 | A kind of LNG Liquefied natural gas self power generation open type gasification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359003A (en) * | 2014-10-27 | 2015-02-18 | 中国海洋石油总公司 | Self-generating open liquefied natural gas gasification system |
-
2014
- 2014-10-27 CN CN201420628234.6U patent/CN204284927U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359003A (en) * | 2014-10-27 | 2015-02-18 | 中国海洋石油总公司 | Self-generating open liquefied natural gas gasification system |
| CN104359003B (en) * | 2014-10-27 | 2016-09-07 | 中国海洋石油总公司 | Liquefied natural gas self power generation open type gasification system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104265512B (en) | High-pressure/low-pressure gas supply system of ship power plant | |
| CN107940538B (en) | Graded heat storage system for cogeneration unit and peak shaving method thereof | |
| CN205135737U (en) | Power generation facility is united with LNG cold energy to heat pump auxiliary type solar energy | |
| CN105370327A (en) | System and method for realizing LNG (Liquefied Natural Gas) gasification of distributed energy station | |
| CN104359003B (en) | Liquefied natural gas self power generation open type gasification system | |
| CN103485851A (en) | Method and device for generating power by using liquefied natural gas cold energy and solar energy as power source | |
| CN204284927U (en) | A kind of LNG Liquefied natural gas self power generation open type gasification system | |
| CN105401985B (en) | Distributed busbar protection gasification LNG system and method | |
| CN202690145U (en) | Modular liquefied natural gas self-generating closed gasification device | |
| CN210197452U (en) | System for heating by utilizing water waste heat of cylinder sleeve of biogas power generation | |
| CN114044119B (en) | Ship multi-power-source electric propulsion system utilizing ammonia fuel | |
| CN205135813U (en) | System for realize distributed energy resource station LNG gasification | |
| CN107304714A (en) | A kind of new gas turbine fuel provides system and method | |
| CN109340560A (en) | Ocean platform formula receiving station LNG gasification device and gasification process | |
| CN216281371U (en) | High-efficient combustor of combustible ice | |
| CN207945482U (en) | A kind of system integrating natural gas, electric power, heat and cold transmission ＆ distribution | |
| CN205977287U (en) | Combined type biogas power generation system | |
| CN109339973A (en) | A kind of cold energy of liquefied natural gas utilizes system | |
| CN205977466U (en) | A LNG vaporizer adds hot -water heating system for river steamer in LNG power | |
| CN111188996B (en) | Low-temperature waste heat recovery device of LNG receiving station submerged combustion type gasifier | |
| CN103615660A (en) | Water bath vaporizer using waste heat energy of engine | |
| CN208816194U (en) | System of providing multiple forms of energy to complement each other based on pressure energy of natural gas recycling | |
| CN209180657U (en) | Ocean platform formula receiving station LNG gasification device | |
| CN113739144A (en) | High-efficient combustion system of combustible ice | |
| CN205135814U (en) | System for distributed energy resource station LNG that gasifies |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |