Super large dimension soft gas storing storage and method

Abstract

The invention discloses a super large dimension soft gas storing storage and method. The gas storing storage comprises a bottom film, an inner film and an outer film, and further comprises gas storingstorage foundations, a gas inlet and outlet pipeline system and a gas supplying-pressure releasing system; the gas storing storage foundations comprise an inner ring beam foundation and an outer ringbeam foundation, and an annular passage is arranged between the inner ring beam foundation and the outer ring beam foundation; the inner film and the bottom film are fixed to the inner ring beam foundation; the periphery of the lower edge of the outer film is fixedly to the outer ring beam foundation; and the gas inlet and outlet pipeline system comprises a gas inlet main pipe, a gas outlet mainpipe, distributing heads, a gas distributing pipe network, a screened platform and a level meter; and the gas supplying-pressure releasing system comprises annular air distributing pipes, a gas supplying main pipe, a gas supplying fan assembly, a pressure sensor, a wind speed sensor, a safe pressure releasing device, a gas leakage sensor, a gas discharging device and the like. The method comprisesthe steps of gas inlet of a gas storage chamber, gas outlet from the gas storage chamber to outside, safe operation under the condition of gale and safe operation when gas is subjected to leakage. Gas storage quantity of the super large dimension soft gas storing storage and method is huge, assembly on the spot is rapid and convenient, a working period is short, the cost is low, maintenance is convenient, and sit selection is loose.

Description

technical field [0001] The invention relates to a gas storage and a method, in particular to a super-large flexible gas storage and a method. Background technique [0002] The storage of industrial and domestic gas and industrial gas represented by natural gas, shale gas, coal gas and hydrogen usually adopts steel storage tanks, wet gas cabinets or dry guide rail gas cabinets. These devices have high cost and long installation time. The problem of long length and high maintenance cost is limited by the span of the steel structure, which makes the storage volume up to hundreds of thousands of cubic meters. [0003] With the rapid growth of natural gas consumption, it is necessary to vigorously build emergency gas storage and strategic storage with a capacity of more than one million cubic meters or even tens of millions of cubic meters. However, the current urban emergency reserve uses liquefied natural gas storage tanks, which have the disadvantages of high construction cos...

AI Technical Summary

Problems solved by technology

However, the current urban emergency reserve uses liquefied natural gas storage tanks, which have the disadvantages of high construction cost and high low-temperature operation costs. The national strategic natural gas reserve uses underground caverns, which have special requirements for geological conditions, and there are many limitations.

[0004] In addition, the double-membrane gas cabinet is mainly used for the storage of biogas and other gases. It is composed of an outer membrane, an inner membrane, a bottom membrane and the base of the gas cabinet. The bottom membrane and the inner membrane floating up and down constitute the gas storage chamber. Compared with steel containers, the cost of membrane gas cabinets is greatly reduced, but there are still shortcomings, mainly as follows: the edges of the outer membrane, inner membrane and bottom membrane are overlapped and fixed together, and the inner membrane is regularly overhauled or the inner membrane fails. In this case, the outer membrane needs to be opened, which makes the maintenance of the inner membrane and the gas storage chamber very inconvenient, and the larger the size of the gas cabinet, the more difficult it is to lift the outer membrane, which limits the increase in the size of the gas cabinet. The span and height of the existing double-membrane gas holders are small, and the gas storage capacity is small, which is only used for gas storage with a capacity of less than tens of thousands of cubic meters

[0005] Chinese patent CN105546324A discloses a high-pressure double-membrane gas storage tank, which includes an inner membrane, an outer membrane, a plastic film, a sealing and pressing mechanism, a base of the gas storage tank, and gas inlet and outlet pipes. The outer membrane is covered with a protective metal shell. The disadvantage is that it is limited by the span of the steel structure, which limits the increase of the size of the gas cabinet, the gas storage capacity is small, and the cost of the metal shell is high; the inner membrane is regularly inspected or the inner membrane fails, and the outer membrane needs to be lifted to make the installation and maintenance of the inner membrane inconvenient

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