City emergency peak-shaving LNG (liquefied natural gas) gas store

A technology for gas storage and peak regulation, applied in the field of LNG gas storage, can solve the problems of difficult operation and maintenance, large construction investment, long process flow, etc., and achieves low equipment investment, low construction investment, and short process flow. Effect

Inactive Publication Date: 2015-06-24
WUHUAN ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional emergency peak shaving LNG gas storage has disadvantages such as long process flow, large construction investment, and difficult operation and maintenance.

Method used

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  • City emergency peak-shaving LNG (liquefied natural gas) gas store

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the present invention will be further explained:

[0016] refer to figure 1 The LNG storage tank T01 is equipped with a liquid phase inlet T011, a gas phase outlet T012 and an LNG booster pump P01. The liquid phase inlet T011 is connected to the LNG liquid phase arm Z01 through the LNG unloading flow regulating valve FV01. The boost control valve PV04 and the air-temperature self-pressurized gasifier E05 are connected to the NG gas phase arm Z02, and the gas phase outlet T012 is connected to the BOG processing system, and the BOG processing system includes a BOG heat exchanger sequentially connected to the gas phase outlet T012 Tube side or shell side of E01, two BOG air temperature reheaters E02 in parallel, BOG reheater E03, BOG buffer tank T03, BOG normal temperature compressor unit K01, natural gas storage tank T04, metering and odorizing skid Z04 and natural gas main pipe The outlet of the natural gas storage tank T0...

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Abstract

The invention discloses a city emergency peak-shaving LNG (Liquefied Natural Gas) gas store. The city emergency peak-shaving LNG gas store comprises an LNG storage tank which is provided with a liquid phase inlet and a gaseous phase outlet, wherein the liquid phase inlet is connected with an LNG liquid phase arm through an LNG unloading flow adjustment valve. The city emergency peak-shaving LNG gas store further comprises an NG (natural gas) gaseous phase arm and a pressurized interface hose, wherein the pressurized interface hose is connected with the NG gaseous phase arm through a self-pressurization control valve and an air-heated type self-pressurization vaporizer. The city emergency peak-shaving LNG gas store is characterized in that the gaseous phase outlet is connected with a BOG (boil off gas) treatment system, the BOG treatment system comprises tube sides or shell sides of BOG heat exchangers sequentially connected with the gaseous phase outlet, BOG air-heated reheating devices, a BOG cushion tank, a BOG normal temperature compressor group and a natural gas store tank, and is connected with a natural gas master tube, and the outlet of the natural gas store tank is further connected with the shell sides or tube sides of the BOG exchangers, a BOG pressure reducing valve, a BOG storage tank, a BOG pressure stabilizing valve and the NG gaseous phase arm. The city emergency peak-shaving LNG gas store is simple in system, short in process flow, low in equipment investment and operation cost, simple in operation maintenance and high in reliability.

Description

technical field [0001] The invention relates to an LNG gas storage, in particular to an urban emergency peak-shaving LNG gas storage. Background technique [0002] As a new clean energy, natural gas is widely used in various fields, and people's life depends more and more on natural gas. The amount of gas consumption fluctuates significantly with the change of climate and temperature, and the gas consumption in winter and summer is unbalanced. At the same time, once there is a problem with the upstream gas source, the city's gas storage peak-shaving and gas supply guarantee capabilities will gradually appear, and the city's emergency peak-shaving LNG gas storage will be built as a supporting pipeline. The effective replenishment of gas can adjust the contradiction between supply and demand, and ensure the peak gas volume, which can ensure the strategic security of gas sources and ensure the stability and reliability of gas supply. All provinces and cities in China are compe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/04F17C13/00
Inventor 赵保林李繁荣朱阳明鞠水清张志伟徐建民夏吴
Owner WUHUAN ENG
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