System and method for utilizing ship LNG cold energy by refrigerated container

A refrigerated container and cold energy technology, applied in the field of refrigerated container systems, can solve the problems of increasing ship fuel consumption and equipment investment costs, and achieve the effects of improving energy utilization efficiency, increasing redundancy, and convenient system connection

Pending Publication Date: 2020-03-24
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology

Therefore, the power supply load of the ship's engine room power grid can reach several thousand kilowatts, or ev

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  • System and method for utilizing ship LNG cold energy by refrigerated container
  • System and method for utilizing ship LNG cold energy by refrigerated container
  • System and method for utilizing ship LNG cold energy by refrigerated container

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments

[0038] Such as figure 1 , the invention discloses a system for utilizing cold energy of ship LNG in refrigerated containers, the system mainly includes: transfer pump (1), LNG fuel tank (2), booster pump (3), temperature control three-way valve (4) , the first heat exchanger (5), the second heat exchanger (6), the first circulation pump (7), the liquid supply pipe (8), the second circulation pump (9), the third heat exchanger (10) , liquid return pipe (11), liquid return pipe temperature bulb (12), solenoid valve (a), temperature relay (b), temperature bulb (c), inlet quick connector (d), refrigerated container heat exchanger (e) , outlet quick connector (f)

[0039] Among them, the cold energy utilization system of the reefer mainly includes: sol...

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Abstract

The invention discloses a system and method for utilizing ship LNG cold energy by a refrigerated container. The system mainly comprises a refrigerated container cold energy utilization system, a supply pipeline system and an LNG fuel supply system. When a ship sails on the sea, LNG fuel is consumed; a 50% ethylene glycol solution is used as a refrigerant to exchange heat with LNG fuel; a refrigerant for obtaining cold energy enters the refrigerated container heat exchanger through the liquid supply pipe, the quick coupling and the electromagnetic valve in sequence to release cold energy for refrigeration, therefore, the cold energy of the ship LNG fuel is used for refrigerating the refrigerated container; the consumption of a heat source in the LNG fuel gasification process can be reduced;the ship power grid load is reduced; the problem that the ship power grid load of a large LNG power container ship is huge due to refrigeration of a refrigerated container is solved; reasonable utilization of energy is achieved, the supply pipeline system and the refrigerated container utilization system are connected through a hose, a quick connector and the like, the problem that a movable refrigerating device cannot utilize LNG cold energy is solved, and the economical efficiency of a ship is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of ships, and relates to a refrigerator system and a method for utilizing LNG cold energy in LNG-powered ships. Background technique [0002] The "Global Sulfur Limit Order" issued by the International Maritime Organization (IMO) is coming soon, stipulating that since 2020, the sulfur content of fuel oil for all ships worldwide must be reduced from 3.5% to 0.5%. Therefore, realizing energy saving and emission reduction of ships and seeking new alternative energy sources have become the most urgent tasks of the shipping industry. [0003] Liquefied natural gas (LNG) has the advantages of low temperature, large gas-liquid expansion ratio, high energy efficiency, and easy transportation and storage. LNG is currently recognized as the least polluting fossil fuel. If it is used as a substitute for fuel oil, it can reduce greenhouse gas emissions by limiting pollution. gas emissions, thereby improving air quality...

Claims

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Application Information

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IPC IPC(8): B63H21/16B63H21/38B63J2/12
CPCB63H21/16B63H21/383B63J2/12B63J2002/125Y02T70/5218
Inventor 李博洋杨倩倩张新光张宝收张瑞张运秋张晓荣马钰强
Owner QINGDAO UNIV OF SCI & TECH
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