CN201093819Y - LNG cold energy step level, integrated utilization system - Google Patents
LNG cold energy step level, integrated utilization system Download PDFInfo
- Publication number
- CN201093819Y CN201093819Y CNU2007200078707U CN200720007870U CN201093819Y CN 201093819 Y CN201093819 Y CN 201093819Y CN U2007200078707 U CNU2007200078707 U CN U2007200078707U CN 200720007870 U CN200720007870 U CN 200720007870U CN 201093819 Y CN201093819 Y CN 201093819Y
- Authority
- CN
- China
- Prior art keywords
- butane
- lng
- storage tank
- company
- heat exchanger
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides an LNG cool energy step integrated utilization system. The technology for utilizing liquefied natural gas (LNG) cool energy step integration for projects of low-temperature power generation, refrigeratory, icerink and cold water air conditioning is utilized, and four construction projects of a cool energy service company, a refrigeratory company, an icerink company and a cold water air conditioning company are established. The system can control the minimization of pipeline network construction cost and cool energy loss during the process of refrigerant transfer, and can consider the problems of suitable temperature and supply-demand balance of cool energy as a whole according to each requirement for the refrigerant temperature level and the cool energy amount of different cool energy users. The utility model utilizes the design technology of a cooling box for making cool traps mutually matched and optimized, and realizing full utilization of cool energy step. A gasification scale of natural gas with 160 thousand squares per day is taken as an example, the technology can save power value of 6 million yuan per year.
Description
Technical field
The utility model belongs to energy technology field, and the cold energy that particularly relates to liquefied natural gas (LNG) is recycled, low temperature
Open the crossing domain of matter circulating generation, freezer, icerink, cold water air-conditioning and overall arrangement thereof.
Background technology
Producing 1 ton of LNG power consumption is 850kWh, if the LNG cold energy is fully utilized, then the electricity price according to 0.7 yuan/degree is used for the calculating of deep cooling project, about 420 yuan/ton of the value of-162 ℃ of LNG cold energy.Because produce the electric power that one ton of LNG need consume 850kWh, its
Value (useful work) has only about 120kWh, and in liquefaction process, irreversible loss reaches 730kWh, and this is that process of refrigerastion institute is inevitable.If the raising Refrigeration Technique can reduce this part loss, but according to present technology its to reduce degree limited.If therefore potential temperatures such as these colds are passed to the cold energy user, and consider heat transfer temperature difference and process loss, then generally can save the electric power of 500～700kWh.Up to now, the successful case of LNG cold energy use aspect is that individual event utilizes technology abroad, and cold energy use efficient is lower, and the technology that comprehensively reaches integration consideration LNG cold energy use is not appeared in the newspapers and disclosure as yet.
As United States Patent (USP) is for No. 6089028 that a closed loop process heat transmitting medium generates electricity.Such generation mode generates electricity with respect to direct expansion, and efficient can be than higher.But factors such as its equipment investment of reference and LNG cold energy use efficient remain further to be proved economically.And in second heat exchanger, as hot-fluid, heat exchange is directly drained later on, is not used, and makes energy not be able to fine utilization with seawater.
The heat that United States Patent (USP) N0.4036028 and N0.4231226 provide LNG to gasify by refrigerant again, this refrigerant and turbine exhaust and combined type circulation power equipment carry out heat exchange.Although the energy consumption that these configurations are gasified LNG more obviously reduces, still exist restriction to utilize the LNG cold energy fully.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of LNG cold energy step, integrated utilization system are provided, and can save a large amount of electric energy and fixed investment, also can drive corresponding industrial expansion as early as possible, realizes maximization of economic benefit.
The purpose of this utility model is achieved through the following technical solutions:
A kind of LNG cold energy step, integrated utilization system is characterized in that: comprise cold energy service company, freezer company, icerink company and cold water air-conditioning company control zone;
Cold energy service company control zone comprises:
The LNG storage tank is used for storage and liquefied natural gas is provided;
Butane heat exchange storage compartment comprises: butane high temperature storage tank is used for storage and the refrigerant butane is provided; The butane heat exchanger, being connected with butane high temperature storage tank by normal temperature pumping pipeline makes high temperature refrigerant butane cooling heat exchange; The butane low-temperature storage tank is used to store the refrigerant butane after the cooling of butane heat exchanger; Heat exchanger is connected with the butane low-temperature storage tank by the temperature pumping pipeline, makes the heat exchange of lowering the temperature once more of refrigerant butane;
Be connected with return line between heat exchanger and the butane high temperature storage tank;
Low temperature
Power generation part: comprise the expansion power generation unit, the expansion power generation unit is communicated with the butane heat exchanger circulation of butane heat exchange storage compartment by pipeline;
Described LNG storage tank connects two output pipes: wherein a pipeline connects gas distributing system through air vaporization pipeline; Another pipeline connects the expansion power generation unit through temperature pumping pipeline, butane heat exchanger, after being heated up, the LNG pressurization enters expansion power generation unit work done generating, expansion power generation unit gas exhaust piping connects gas distributing system through the butane heat exchanger, enters gas distributing system after the low pressure LNG that discharges after the work done is heated up once more to send;
Freezer, icerink and cold water air-conditioning company control zone comprise:
Be located at internal exchanger group, the refrigerant storage tank of freezer, icerink and cold water air-conditioning company control zone respectively; The inlet and outlet mouth of each internal exchanger group connects alkane heat exchanger, refrigerant storage tank by pipeline respectively; Each refrigerant storage tank connects the alkane heat exchanger by the delivery pump return line respectively.
Native system has following beneficial effect:
1, sets up cold energy service company, freezer company, four construction projects of icerink company and cold water air-conditioning company, utilize liquefied natural gas (LNG) cold energy step, the integrated generating of low temperature fire, freezer, icerink and the cold water air-conditioning project of being used for, pipeline network construction cost and cold energy minimization of loss in controlled refrigeration matchmaker's transmission course realize the cold energy step, utilize fully.
2,--change--the several additional process processes of-expansion working cold by increasing the pump supercharging, obtain considerable electric power and the higher cold energy of Geng Duo potential temperature.
3, adopted butane, glycol water, water etc. once, secondary refrigerant, convenient mutual coupling and the optimization that realizes each cold-trap.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a LNG cold energy use overall principle flow chart.
The specific embodiment
With reference to Fig. 1.The integrated low temperature that is used for of LNG satellite station cold energy
The integrated system of generating, freezer, icerink and cold water air-conditioning.
This system's construction has four function control zones, i.e. cold energy service company, freezer company, icerink company and cold water air-conditioning company control zone.The control zone management LNG of cold energy service company vaporization part, butane heat exchange storage compartment and low temperature cigarette power generation part.Be that LNG comes out to be divided into two-way from LNG storage tank B3, the one tunnel is that original, LNG flows through and enters gas distributing system behind air vaporizer B9, the B10; One the tunnel is to enter butane heat exchanger B8 after LNG cryogenic pump B6, pipeline pressurization, temperature enters expansion power generation B of Unit 7 after rising to about 15 ℃, enter butane heat exchanger B8 after pressure is reduced to about 0.4MPa again, temperature enters gas distributing system after rising to about 15 ℃ once more.The refrigerant butane comes out from high temperature storage tank B1 simultaneously, enters butane heat exchanger B8 after normal temperature pump B5, pipeline pressurization, enters butane low-temperature storage tank B2 after temperature is reduced to a certain degree and stores.Low temperature butane among the storage tank B2 enters cold energy use company control zone after cryogenic pump B4, pipeline are got to heat exchanger B24.Be connected with return line between heat exchanger B24 and the butane high temperature storage tank B1
Freezer company control flow is: the freezer refrigerant is reduced to about-40 ℃ through temperature behind the heat exchanger B24, echelon enters freezer B12, B13 and fresh-keeping warehouse B14, B16 again, after rising to about-10 ℃, refrigerant temperature enters freezer refrigerant storage tank B15, the refrigerant of refrigerant storage tank B15 is back to heat exchanger B24 through delivery pump 19, pipeline, realizes that the step of freezer refrigerant is recycling.
Icerink company control flow is: the ice rink refrigerant is reduced to about-30 ℃ through temperature behind the heat exchanger B24, enter each ice rink internal heat exchange tubes row B21, B22, B23 again, after rising to about-5 ℃, refrigerant temperature enters ice rink refrigerant storage tank B26, the refrigerant of refrigerant storage tank B26 is back to heat exchanger B24 through delivery pump 27, pipeline, realizes the recycling of ice rink refrigerant.
Cold water air-conditioning company control flow is: air conditioner cold water is reduced to about 2 ℃ through temperature behind the heat exchanger B24, enter the inner air-conditioning unit of air conditioner user B31, B32, B33 more respectively, after rising to about 20 ℃, cold water temperature enters cold water storage tank B29, the cold water of cold water storage tank B29 is back to heat exchanger B24 through delivery pump 30, pipeline, realizes the recycling of cold water.
In accompanying drawing 1, LNG low temperature
Power generation project is that LNG satellite gasification station is distinctive, domestic unique even also be unique landmark project in the world.Scale with 160,000 m3/d is calculated, nearly 2,000,000 degree of the generated energy in 1 year of this project, and electric power is worth nearly 1,000,000 yuan.The cold energy of all the other LNG is 1337kW, is used for icerink 335kW, freezer 408kW, cold water air-conditioning 594kW, then is equivalent to save electric power 1171kW, and LNG satellite station annual LNG gasification station profit is 1,220,000 yuan; LNG cold energy service company profit is 1,830,000 yuan; The cold energy user saves the refrigeration expense and electricity expense adds up to 3,050,000 yuan; The economic benefit that whole project can be created in 1 year is 6,000,000 yuan.The LNG cold energy
Utilization rate nearly 30%.
Claims (3)
1. a LNG cold energy step, integrated utilization system is characterized in that: comprise cold energy service company, freezer company, icerink company and cold water air-conditioning company control zone;
Cold energy service company control zone comprises:
The LNG storage tank is used for storage and liquefied natural gas is provided;
Butane heat exchange storage compartment comprises: butane high temperature storage tank is used for storage and the refrigerant butane is provided; The butane heat exchanger, being connected with butane high temperature storage tank by normal temperature pumping pipeline makes high temperature refrigerant butane cooling heat exchange; The butane low-temperature storage tank is used to store the refrigerant butane after the cooling of butane heat exchanger; Heat exchanger is connected with the butane low-temperature storage tank by the temperature pumping pipeline, makes the heat exchange of lowering the temperature once more of refrigerant butane;
Be connected with return line between heat exchanger and the butane high temperature storage tank;
Low temperature
Power generation part: comprise the expansion power generation unit, the expansion power generation unit is communicated with the butane heat exchanger circulation of butane heat exchange storage compartment by pipeline;
Described LNG storage tank connects two output pipes: wherein a pipeline connects gas distributing system through air vaporization pipeline; Another pipeline connects the expansion power generation unit through temperature pumping pipeline, butane heat exchanger, after being heated up, the LNG pressurization enters expansion power generation unit work done generating, expansion power generation unit gas exhaust piping connects gas distributing system through the butane heat exchanger, enters gas distributing system after the low pressure LNG that discharges after the work done is heated up once more to send;
Freezer, icerink and cold water air-conditioning company control zone comprise:
Be located at internal exchanger group, the refrigerant storage tank of freezer, icerink and cold water air-conditioning company control zone respectively; The inlet and outlet mouth of each internal exchanger group connects heat exchanger, refrigerant storage tank by pipeline respectively; Each refrigerant storage tank connects heat exchanger by the delivery pump return line respectively.
2. LNG cold energy step according to claim 1, integrated utilization system is characterized in that: described freezer company is provided with freezer and fresh-keeping warehouse in the control zone.
3. LNG cold energy step according to claim 1, integrated utilization system is characterized in that: the internal exchanger group of described cold water air-conditioning company control zone is the air-conditioning unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200078707U CN201093819Y (en) | 2007-08-06 | 2007-08-06 | LNG cold energy step level, integrated utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200078707U CN201093819Y (en) | 2007-08-06 | 2007-08-06 | LNG cold energy step level, integrated utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201093819Y true CN201093819Y (en) | 2008-07-30 |
Family
ID=39901788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200078707U Expired - Fee Related CN201093819Y (en) | 2007-08-06 | 2007-08-06 | LNG cold energy step level, integrated utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201093819Y (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832690A (en) * | 2010-05-25 | 2010-09-15 | 沈军 | Low-temperature air generator and low-temperature tunnel or low-temperature processing apparatus formed thereby |
| CN102383868A (en) * | 2010-08-30 | 2012-03-21 | 刘俊德 | Method and device for comprehensively utilizing energy of high-pressure natural gas |
| CN102431640A (en) * | 2011-11-22 | 2012-05-02 | 杨彦华 | LNG (liquefied natural gas) powered refrigeration ship |
| CN102022876B (en) * | 2009-09-23 | 2013-02-13 | 上海电气集团股份有限公司 | Low-temperature phase-change energy storage module for cold energy storage of liquefied natural gas and manufacturing method thereof |
| CN102937038A (en) * | 2011-08-15 | 2013-02-20 | 北京天成山泉电子科技有限公司 | Multi-level recovering and comprehensive utilization system of liquefied nature gas (LNG) cold energy and using method thereof |
| CN102943698A (en) * | 2011-08-15 | 2013-02-27 | 北京天成山泉电子科技有限公司 | LNG (Liquefied Natural Gas) cold energy four-stage recycling system and use method thereof |
| CN102967099A (en) * | 2012-11-08 | 2013-03-13 | 暨南大学 | Energy cascade comprehensive utilization method of LNG (liquefied natural gas) cold energy |
| CN104863645A (en) * | 2015-05-30 | 2015-08-26 | 上海电力学院 | Efficient pipe network natural gas pressure energy and cold energy recycling and utilization system |
| CN105401989A (en) * | 2015-12-10 | 2016-03-16 | 华电电力科学研究院 | System and method for comprehensively utilizing liquefied natural gas (LNG) energy |
| CN105074141B (en) * | 2013-03-21 | 2017-03-15 | 林德股份公司 | The method and apparatus for producing electric energy |
| CN109268095A (en) * | 2018-08-15 | 2019-01-25 | 江苏科技大学 | LNG fuel cold energy method of comprehensive utilization and system for double fuel Power Vessel |
| CN109340560A (en) * | 2018-11-15 | 2019-02-15 | 上海宏华海洋油气装备有限公司 | Ocean platform formula receiving station LNG gasification device and gasification process |
| WO2019137359A1 (en) * | 2018-01-10 | 2019-07-18 | 毛文军 | Lng cold energy utilization system and method based on argon cycle |
| CN110332746A (en) * | 2019-06-28 | 2019-10-15 | 上海电力学院 | A kind of Cold Chain Logistics garden aggregation system based on LNG energy cascade utilization |
| CN110761864A (en) * | 2019-11-08 | 2020-02-07 | 江苏科技大学 | Novel cold energy comprehensive utilization system of liquefied natural gas power container ship |
| CN113932634A (en) * | 2021-11-05 | 2022-01-14 | 青岛一加亿智能科技有限公司 | Cryogenic fluid cold energy recycling system |
-
2007
- 2007-08-06 CN CNU2007200078707U patent/CN201093819Y/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022876B (en) * | 2009-09-23 | 2013-02-13 | 上海电气集团股份有限公司 | Low-temperature phase-change energy storage module for cold energy storage of liquefied natural gas and manufacturing method thereof |
| CN101832690A (en) * | 2010-05-25 | 2010-09-15 | 沈军 | Low-temperature air generator and low-temperature tunnel or low-temperature processing apparatus formed thereby |
| CN102383868A (en) * | 2010-08-30 | 2012-03-21 | 刘俊德 | Method and device for comprehensively utilizing energy of high-pressure natural gas |
| CN102937038A (en) * | 2011-08-15 | 2013-02-20 | 北京天成山泉电子科技有限公司 | Multi-level recovering and comprehensive utilization system of liquefied nature gas (LNG) cold energy and using method thereof |
| CN102943698A (en) * | 2011-08-15 | 2013-02-27 | 北京天成山泉电子科技有限公司 | LNG (Liquefied Natural Gas) cold energy four-stage recycling system and use method thereof |
| CN102943698B (en) * | 2011-08-15 | 2015-09-09 | 北京天成山泉电子科技有限公司 | A kind of LNG cold energy level Four recycling system and using method thereof |
| CN102937038B (en) * | 2011-08-15 | 2016-02-17 | 北京天成山泉电子科技有限公司 | A kind of multistage recovery utilization system of LNG cold energy and using method thereof |
| CN102431640A (en) * | 2011-11-22 | 2012-05-02 | 杨彦华 | LNG (liquefied natural gas) powered refrigeration ship |
| CN102967099A (en) * | 2012-11-08 | 2013-03-13 | 暨南大学 | Energy cascade comprehensive utilization method of LNG (liquefied natural gas) cold energy |
| CN105074141B (en) * | 2013-03-21 | 2017-03-15 | 林德股份公司 | The method and apparatus for producing electric energy |
| CN104863645A (en) * | 2015-05-30 | 2015-08-26 | 上海电力学院 | Efficient pipe network natural gas pressure energy and cold energy recycling and utilization system |
| CN105401989A (en) * | 2015-12-10 | 2016-03-16 | 华电电力科学研究院 | System and method for comprehensively utilizing liquefied natural gas (LNG) energy |
| WO2019137359A1 (en) * | 2018-01-10 | 2019-07-18 | 毛文军 | Lng cold energy utilization system and method based on argon cycle |
| CN109268095A (en) * | 2018-08-15 | 2019-01-25 | 江苏科技大学 | LNG fuel cold energy method of comprehensive utilization and system for double fuel Power Vessel |
| CN109268095B (en) * | 2018-08-15 | 2021-09-07 | 江苏科技大学 | LNG fuel cold energy comprehensive utilization method and system for dual-fuel power ship |
| CN109340560A (en) * | 2018-11-15 | 2019-02-15 | 上海宏华海洋油气装备有限公司 | Ocean platform formula receiving station LNG gasification device and gasification process |
| CN110332746A (en) * | 2019-06-28 | 2019-10-15 | 上海电力学院 | A kind of Cold Chain Logistics garden aggregation system based on LNG energy cascade utilization |
| CN110761864A (en) * | 2019-11-08 | 2020-02-07 | 江苏科技大学 | Novel cold energy comprehensive utilization system of liquefied natural gas power container ship |
| CN113932634A (en) * | 2021-11-05 | 2022-01-14 | 青岛一加亿智能科技有限公司 | Cryogenic fluid cold energy recycling system |
| CN113932634B (en) * | 2021-11-05 | 2024-07-05 | 青岛鸿发顺石油装备有限公司 | Cryogenic fluid cold energy recycling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201093819Y (en) | LNG cold energy step level, integrated utilization system | |
| CN202868298U (en) | Gradient utilization system of LNG (Liquefied Natural Gas) cold energy | |
| CN110671840B (en) | Heat, power and cold combined supply system based on liquefied natural gas gasification cold energy and operation method | |
| CN103982774B (en) | A kind of multi-functional LNG Liquefied natural gas satellite station technological process and device | |
| CN106288577B (en) | Multi-energy large-temperature-difference area cooling device | |
| CN103335467B (en) | LNG energy comprehensive utilization system | |
| US11773754B2 (en) | Cryogenic energy system for cooling and powering an indoor environment | |
| CN114216046B (en) | LNG cold energy and data center cold supply coupling system and method | |
| CN102213504A (en) | System for using LNG (Liquefied Natural Gas) in air conditioner | |
| CN102155299A (en) | Combination system of stirling engine and combustion gas turbine utilizing liquefied natural gas | |
| CN106764414A (en) | A kind of LNG gasification station cold, heat and power triple supply system | |
| CN103267394A (en) | Method and device for efficiently utilizing cold energy of liquefied natural gas | |
| CN103234118A (en) | Liquefaction peak regulation method and device utilizing pressure energy of natural gas high-pressure pipe network | |
| CN211695491U (en) | Energy supply system combining area distributed energy system and lake water source heat pump | |
| CN202928089U (en) | Multiple-temperature-zone carbon dioxide heat pump hot water unit | |
| CN110332746B (en) | Cold chain logistics park integrated system based on LNG energy cascade utilization | |
| CN103485851A (en) | Method and device for generating power by using liquefied natural gas cold energy and solar energy as power source | |
| CN201680657U (en) | Heat pipe type cold energy utilization device based on liquefied natural gas station and refrigeration house | |
| CN201569239U (en) | Cold storage operation device using cold energy of liquefied natural gas to refrigerate | |
| CN111219906A (en) | Energy supply system combining area distributed energy system and lake water source heat pump | |
| CN210267858U (en) | LNG cold energy and exhaust-heat boiler waste heat refrigerated simultaneous cooling system | |
| CN110185506B (en) | Pressure energy comprehensive utilization system of natural gas pressure regulating station | |
| CN110285636B (en) | LNG cold energy and exhaust-heat boiler waste heat refrigeration's simultaneous cooling system | |
| CN102269509A (en) | CO2 compression and liquefaction system combined with waste heat driven refrigeration | |
| CN203396176U (en) | LNG (liquefied natural gas) energy comprehensive utilization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080730 Termination date: 20120806 |