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Liquid storage system and method of supplying non-combustible gas in liquid storage system

A storage system and technology for liquid fuel, applied in gas/liquid distribution and storage, container discharge method, container filling method, etc., can solve problems such as difficult to avoid metal corrosion

Active Publication Date: 2021-09-07
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It will be difficult to avoid metal corrosion on the part of the tank inner surface vertically above the inert gas layer

Method used

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  • Liquid storage system and method of supplying non-combustible gas in liquid storage system
  • Liquid storage system and method of supplying non-combustible gas in liquid storage system
  • Liquid storage system and method of supplying non-combustible gas in liquid storage system

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no. 1 approach

[0021] (Schematic structure of liquid storage system)

[0022] First, refer to figure 1 and figure 2 The liquid storage system according to the present embodiment is described. figure 1 is a schematic diagram of the liquid storage system according to this embodiment, and shows a longitudinal section of the liquid storage tank. figure 2 is a schematic diagram of the liquid storage system according to this embodiment, and shows a cross section of the liquid storage tank. exist figure 1 and figure 2 Among them, the upward direction in the vertical direction is represented by the arrow U, and the downward direction in the vertical direction is represented by the arrow D.

[0023] like figure 1 and 2 As shown, the liquid storage system according to this embodiment has a liquid storage tank 10 (referred to simply as a storage tank) in which liquid can be stored, and a liquid fuel 20 for pumping the liquid fuel 20 stored in the storage tank to the outside of the storage tan...

no. 2 approach

[0076] refer to Image 6 A liquid storage system according to this embodiment, and a method of supplying an incombustible gas to a gas phase space in a storage tank of the liquid storage system are described. Image 6 is a schematic diagram of the liquid storage system according to this embodiment, and shows a longitudinal section of the liquid storage tank. It is to be noted that the same reference numerals are used to designate substantially the same configuration as that of the first embodiment, and description thereof is omitted.

[0077] In an embodiment, the liquid pumping device 25 supplies the liquid fuel 20 stored in the storage tank 10 to the heat engine 2 . The heat engine 2 is a prime mover that converts thermal energy generated by the combustion of the liquid fuel 20 into mechanical energy. The heat engine 2 includes, for example, an internal combustion engine, an external combustion engine, a gas turbine, and a steam turbine. The heat engine 2 is an emergency ...

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PUM

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Abstract

According to an embodiment, the liquid storage system includes: a storage tank storing liquid fuel; a vent pipe providing communication between the outside of the storage tank and a gas phase space above the liquid level of the liquid fuel in the storage tank; Non-combustible gas supply means; pressure control means installed in the vent pipe, operating in response to the pressure difference between the gas phase space and atmospheric pressure, to limit the pressure in the gas phase space within the specified range. When the pressure in the gas phase space is less than or equal to the specified lower limit, the pressure control device introduces the ambient air outside the storage tank into the gas phase space through the vent pipe; when the pressure in the gas phase space is higher than the specified upper limit, the pressure control device passes through the vent pipe Exhaust the gas from the gas phase space to the outside of the storage tank.

Description

technical field [0001] Embodiments of the present invention relate to techniques for controlling the pressure and oxygen concentration in the gas phase space vertically above the liquid level in a storage tank storing the liquid. Background technique [0002] Tanks for storing liquids include so-called liquid tanks for storing water or flammable oils such as gasoline and diesel. Liquids are stored in such tanks. If required, the liquid is pumped to the outside of the tank through a pipe or similar device. Sometimes, in a storage tank, the position of the gas-liquid interface (ie, the liquid level) drops. The volume of the gas phase space vertically above the liquid level in the tank increases as the liquid level drops. In the case of a closed space in the storage tank, the pressure of the gas phase space decreases as the liquid level moves vertically downward. When the pressure in the gas phase space reaches values ​​close to vacuum, it is difficult to pump the liquid fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C13/00F17C13/02F17C13/04F17C5/06
CPCF17C5/06F17C13/00F17C13/002F17C13/025F17C13/04F17C2221/016B65D90/34B65D90/44B65D90/48G05D16/16Y10T137/3127
Inventor 稻田阳平
Owner KK TOSHIBA