Small-volume welding heat insulation gas cylinder device

Abstract

The invention relates to a small-volume welded heat insulation gas cylinder device which comprises a tank body, a vaporizer and a pipeline system, the tank body comprises an inner container and an outer container, a vacuum interlayer is formed between the inner container and the outer container, and a heat insulation layer is arranged in the vacuum interlayer; the vaporizer is arranged above the tank body and is connected with a pipeline system arranged above the vaporizer; the pipeline system comprises three paths of valve pipelines, the first path is a gas use valve, and the gas use valve is connected with a gasification pipe; the second path is a liquid filling / using valve, and the liquid filling / using valve is connected with the inner container; and the third path comprises an emptying / overflow valve, a safety valve and a pressure gauge which share one pipeline. The vaporizer is externally arranged above the tank body and tightly attached to the outer protective ring, the protective ring is made of aluminum, the outer container through which the pipeline of the vaporizer passes is also made of aluminum materials, the heat dissipation performance of aluminum is better, heat dissipation and heat insulation are better facilitated, the gasification capacity is enhanced, gasification is faster, and the gasification effect is better.

Description

technical field [0001] The invention relates to the technical field of pressure vessels, in particular to a small-volume welded heat-insulating gas cylinder device. Background technique [0002] With the popularization and application of cryogenic technology, cryogenic liquid has been gradually applied to industrial production and civil life from the earliest high-end technology application, and cryogenic insulating gas cylinders are used as equipment for storing liquid oxygen, liquid nitrogen, liquid argon and other low-temperature liquefied gases , compared with traditional Dewar bottles and high-pressure steel gas cylinders, it has the characteristics of safety, reliability, convenient use, high loading rate and refillable. The vaporizer of the existing insulated gas cylinder is a built-in evaporation coil, which is installed inside the interlayer of the gas cylinder. When the gas use valve is opened, the low-temperature liquid will exchange heat with the outside through ...

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Problems solved by technology

[0003] However, the volume of existing adiabatic gas cylinders is generally above 175 liters. Due to the need for a built-in vaporizer, a longer gasification tube is required to achieve the gasification effect, so a larger container space is required, resulting in a larger volume of the current adiabatic gas cylinders. , is not convenient for transportation and use, so there is an urgent need for a small-volume welded insulated gas cylinder

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