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LNG energy comprehensive utilization system

A technology of energy and distributed energy, which is applied in the field of LNG energy comprehensive utilization system, can solve the problems of energy utilization efficiency limitation of distributed energy stations and increase of power consumption of ice storage system, so as to improve power generation and power consumption efficiency, reduce cooling The effect of reducing the amount of loss and creating economic benefits

Active Publication Date: 2013-10-02
SHENZHEN GAS CORP +1
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  • Claims
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Problems solved by technology

There are more and more applications for building distributed energy stations with natural gas as energy to provide power generation, cooling, and heating. However, due to the asynchronous nature of power demand, cooling demand, and heating demand, the energy utilization efficiency of distributed energy stations is limited.
In addition, the conventional ice-storage air-conditioning system uses low-cost electricity at night to store ice, and during the day when the air-conditioning load peaks, it melts the ice for cooling to reduce the power consumption at peak loads. The power consumption of the ice storage system does not decrease but increases
At present, there is no comprehensive energy utilization system that integrates cold energy recovery, distributed energy supply and ice storage air conditioning

Method used

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  • LNG energy comprehensive utilization system
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Embodiment Construction

[0026] Such as figure 1As shown, the present invention discloses a system for comprehensive utilization of LNG energy, including a cold recovery system, a distributed energy system, an ice storage air-conditioning system, a water collector 201, a water separator 202, and an air-conditioning terminal device 203. The cold recovery system Including LNG storage tank 501, LNG pump 502, cold recovery equipment 208, vaporizer 209, the LNG storage tank 501 is connected to the inlet end of the LNG pump 502, and the outlet end of the LNG pump 502 is connected to the cold recovery equipment 208 The inlet end is connected, and the outlet end of the cold recovery device 208 is connected to the inlet end of the gasifier 209; the distributed energy system includes a gas turbine 204, a lithium bromide refrigerator 205, and the gas turbine 204 and the gasifier 209 The outlet end is connected, and natural gas is burned in the gas turbine 204 to generate electricity. The gas turbine 204 is conne...

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Abstract

The invention provides an LNG energy comprehensive utilization system which comprises a cold recovery system, a distribution type energy system, an ice storage air-conditioner system, a water collector, a water segregator, and air-conditioner tail end equipment. The cold recovery system and the ice storage air-conditioner system are connected with the ice storage device through cold recovery equipment. The distribution type energy system is connected with the cold recovery system. The ice storage air-conditioner system is connected with the distribution type energy system through the water collector and the water segregator. The efficient LNG energy comprehensive utilization system is formed through the organic combination of LNG gasification equipment and the cold recovery equipment, the organic combination of natural gas generation equipment and waste heat recovery equipment, and the organic combination of the ice storage device and the air-conditioner equipment, and the gradient utilization and the comprehensive utilization of energy are realized. The LNG energy comprehensive utilization system uses LNG as a source, only emits little low-temperature smoke finally, greatly reduces carbon emission amount and heat emission amount, and greatly improves comprehensive energy utilization efficiency.

Description

technical field [0001] The invention relates to cold recovery, distributed energy, and ice storage air-conditioning systems, in particular to a system for comprehensive utilization of LNG energy. Background technique [0002] LNG is a low-temperature liquid mixture at -162°C. When gasified per ton of LNG, it can generate about 230kWh of cold energy. Reasonable use of this part of cold energy can produce considerable economic benefits. There are more and more applications for building distributed energy stations with natural gas as energy to provide power generation, cooling, and heating. However, due to the asynchronous nature of power demand, cooling demand, and heating demand, the energy utilization efficiency of distributed energy stations is limited. . In addition, the conventional ice-storage air-conditioning system uses low-cost electricity at night to store ice, and during the day when the air-conditioning load peaks, it melts the ice for cooling to reduce the power ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D3/10F25B27/02F24F5/00
Inventor 陈运文杜琳琳杨国旗
Owner SHENZHEN GAS CORP
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