Small-sized LNG supplying system

A gas supply system, small technology, applied in fixed-capacity gas storage tanks, gas/liquid distribution and storage, pressure vessels, etc., can solve problems such as inability to meet actual needs, and achieve the effect of reducing stress concentration

Inactive Publication Date: 2018-01-05
XINXING ENERGY EQUIP
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the development of my country's economy and the vigorous development of LNG in automobiles and ships as power, or as temporary energy in industry, large LNG storage tanks cannot meet actual needs due to site and space constraints. In addition, for the deve

Method used

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  • Small-sized LNG supplying system
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Examples

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Example Embodiment

[0023] figure 1 It is a structural diagram of a small LNG gas supply system, including LNG cryogenic storage tanks and pipeline systems. The LNG cryogenic storage tank is a vertical double-cylinder high-vacuum multi-layer thermal insulation cryogenic tank structure, consisting of an outer tank 1 and an inner tank 2 Set composition. The outer tank body 1 is made of low-alloy steel plate, with an inner diameter of φ1850mm and a wall thickness of 8mm. The arc-shaped head at the bottom of the traditional pressure tank is canceled, and the bottom plate 10 directly adopts a flat plate structure to replace the arc-shaped head of the traditional tank body. The leg structure can be directly seated on the ground. For small tanks, it improves the flexibility of the equipment and is easy to move and install. The inner tank body 2 is made of austenitic stainless steel plate, and the Rp1.0 value is additionally inspected according to GB24511. The inner diameter is φ1700mm, the plate thickn...

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Abstract

The invention provides a small-sized LNG supplying system which comprises a low-temperature storage tank and a pipeline system. The low-temperature storage tank is constituted of an inner tank body and an outer tank body in a sleeving-fit mode, the bottom of the outer tank body is of a slab structure, and the inner tank body is fixed through a composite hoisting structure constituted by a bottom positioning assembly and a top connector assembly. The pipeline system comprises a gasification pipeline, a liquidometer pipeline, an overflow pipeline, a liquid inlet pipeline, a gas phase pipeline and a self-pressurization pipeline; and except for an outlet of the self-pressurization pipeline, other pipelines get in and out of the inner tank body from the top connector assembly. According to thesmall-sized LNG supplying system, the size is small, the weight is low, low-temperature LNG filling, overflow, self-pressurization, supplying and the like are highly integrated, site and space limit is overcome, and hoisting operation is flexible.

Description

technical field [0001] The invention belongs to the application field of liquefied natural gas (LNG), in particular to a small-scale gas supply system for liquefied natural gas. Background technique [0002] As a kind of clean energy, natural gas is not only pollution-free after burning, but also has low cost. It has attracted more and more attention from the society, and its application fields have gradually expanded. Gaseous natural gas CNG is mostly transported by pipeline, and liquid natural gas LNG is mostly transported by storage tanks. In order to meet the needs of LNG long-distance transportation, LNG storage tanks are mostly large storage tanks. [0003] With the development of my country's economy and the vigorous development of LNG in automobiles and ships as power, or as temporary energy in industry, large LNG storage tanks cannot meet actual needs due to site and space constraints. In addition, for the development of LNG The planning of the overall solution and...

Claims

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Application Information

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IPC IPC(8): F17C1/12F17C13/00
Inventor 连欢欢武常生崔闻天田士华张娟李桂苓张士旭秦瑞
Owner XINXING ENERGY EQUIP
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